Our Team

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  • Christopher Smith


    Christopher Smith


    With thirty-five years of experience, Christopher brings a wealth of knowledge in real estate development, financing, brokerage, construction, and property management to Ox Hill.

    His former experience includes time with developers Trammell Crow Company, Corporate Office Properties Trust, Centennial, and Ackerman & Company. During that period, he worked extensively in office and retail, mixed-use and entertainment development, public-private partnerships, and university housing and development.

    In addition to two decades working on the developer side, and after a period on the tenant side, Christopher created a strong practice in guiding organizations with their real estate from renovations, relocations, new developments, repositioning, acquisitions, and dispositions locally, nationally, and internationally. This practice has evolved into Ox Hill Companies and its subsidiaries, including Ox Hill Capital, Ox Hill Development, and Ox Hill Realty. Ox Hill Real Estate Development focuses on projects addressing the needs and goals of organizations and communities with added value creation through the incorporation of complementary uses.

  • Mil “Flip” Wallen


    Mil “Flip” Wallen


    Mil “Flip” Wallen, a 41-year veteran of the commercial real estate industry, specializes in commercial/mixed-use and data center/mission critical construction, design, and development with significant experience building a variety of product types in the region.

    He is the founder and owner of TRINITY Group Construction (TGC), established in 2002, an awarding winning construction company and one of the leading commercial builders in the Washington, D.C. metro area. Prior to founding TGC, Flip worked his way up through Southland Concrete and Tucon Construction/Landstar Development companies for over 20 years. During this period, he became an expert in developing retail, preschools, medical, hotels, and assisted living facilities. He has also invested his practice in life sciences and laboratory construction.

    Flip directs the construction pricing and implementation for Ox Hill Real Estate Development. His focus on the latest technology trends keep his approach fresh, new, and innovative, surpassing industry standards.

    Flip has become one of the most trusted sources of knowledge, wisdom, and leadership in the metro D.C. development and construction market, where he has developed and built millions of square feet in the market.

    He is a graduate of James Madison University with a BBA in Management Information Systems.

  • Mossadaq Chughtai


    Mossadaq Chughtai


    Mossadaq brings more than 40 years of diverse business experience to Ox Hill Companies.

    In addition to his role at Ox Hill, Mossadaq directs a sizable portfolio of commercial real estate holdings in the Washington, D.C. metro area and Pennsylvania.  He has numerous achievements as a board member or partner across diverse business sectors including data centers, renewable energy, pharmaceuticals, manufacturing, and farming.  He has successfully built companies from start-up to acquisition and generously provides his leadership skills and advice to the next generation of entrepreneurs.

    Mr. Chughtai has played an active role in promoting a stronger relationship between the U.S. and Pakistan and was a founding member of Pakistan American Leadership Center (PAL-C), which established the Congressional Pakistan Caucus in 2004.

    Murray College, Sialkot, in Pakistan, with executive degree from MIT Sloan School of Management in artificial intelligence. He serves on the boards of several organizations, including the advisory board of EME College of Nust University in Pakistan.

  • Joe Gonzalez


    Joe Gonzalez


    With over 25 years of seasoned experience in the construction industry, Joe has consistently delivered outstanding results and demonstrated unparalleled success.

    During his tenure at HITT Contracting Inc., Joe led the execution of numerous multimillion-dollar construction ventures, including the DDOT Headquarters in The Yards and the WMATA Headquarters in New Carrollton. Prior to his role at HITT Contracting Inc., Joe served at PN Hoffman where he managed prominent projects like Wharf Phase I, Parcel 2 – The Anthem, Washington Navy Yard – “The Bower” condominiums, and Banneker Park – Maine Ave. SW.

    Joe holds a bachelor’s degree in building construction management from Purdue University.

  • Rania Nazhat


    Rania Nazhat


    Rania Nazhat is a distinguished professional with over 15 years of experience as an Executive Assistant.

    Since March 2023, she has held the pivotal role of Executive Assistant to the CEO at Ox Hill Companies, located in Washington, D.C. In this capacity, Rania demonstrates exceptional skill in managing the CEO’s schedule, orchestrating appointments, and coordinating events. She serves as the primary liaison among executives, employees, and clients, ensuring seamless communication and operational efficiency. Renowned for her reliability, Rania adeptly handles travel logistics, responds swiftly to leadership inquiries, and fosters an environment of transparency. She is instrumental in evaluating and refining company policies to enhance organizational effectiveness.

    Rania completed extensive coursework in Liberal Arts at Northern Virginia Community College in Sterling, VA, and Montgomery Community College in Rockville, MD.

  • Michael Matz

    Director, Development Financing

    Michael Matz

    Director, Development Financing

    Michael has three decades of experience working with large investment portfolios and securities. His prior experience includes 29 years at Freddie Mac and Fannie Mae structuring mortgage portfolios into securities. He has structured some of the largest securities transactions on record, and his lifetime transaction volume exceeds $100 billion. His background also includes four years at the National Association of Realtors and Prudential Home Mortgage.

    Across the organizations Michael has served, he has started new departments and launched groundbreaking products. He was a founding member of a multi-billion-dollar department focused on portfolio transactions, launched a new department to solicit and onboard small-to-medium sized lenders and helped them achieve their affordable housing goals. He also negotiated and engineered credit risk sharing structures with mortgage investors saving millions in insurance costs, and founded a department responsible for data integrity and analysis on portfolio purchases.

    Michael’s experience building organizations and launching products ensures a steady and deliberate growth trajectory for Ox Hill Companies. He is astute at collaborating across business disciplines and setting appropriate goals for the organization.

    He holds a Bachelor of Science in Finance from West Virginia University with a specialization in banking and securities analysis and a minor in accounting.

  • Aidan Smith, J.D.

    Director, Contracts Management

    Aidan Smith, J.D.

    Director, Contracts Management

    Aidan Smith is a highly accomplished professional with an impressive educational background. He completed his undergraduate studies at Virginia Tech, earning a Bachelor of Science degree in Criminology and a Bachelor of Arts degree in International Studies. Aidan’s pursuit of legal expertise led him to New York Law School, where he earned his Juris Doctor degree.

    During his time at New York Law School, Aidan distinguished himself as a dedicated and talented law student. He took part in the renowned Jessup International Law Moot Court Competition for law students, showcasing his aptitude for international law in both written and oral pleadings. Aidan’s commitment to his professional growth led him to secure a position in the NYLS Venable Summer Associate Program, where he gained valuable experience in litigation through numerous professional training workshops and mentoring by seasoned attorneys.

    Aidan applies his strong educational foundation, diverse range of experiences, and drive for excellence to his role as a Director of Contracts Management at Ox Hill Companies.

  • Melanie Vaughan Demers


    Melanie Vaughan Demers


    Melanie Vaughan Demers brings over 25 years of experience in marketing and advertising to Ox Hill Companies. She is recognized for her expertise in developing and executing transformative campaigns across global markets. Her background as an award-winning graphic designer further enhances her ability to craft compelling brand identities and innovative solutions.

    Throughout her career, Melanie has excelled in pivotal roles such as Marketing Manager at LISCR, where she orchestrated comprehensive B2B marketing initiatives across North America, South America, Europe, Asia, and Africa. As the owner of Crocus Creative, Melanie provided strategic counsel to diverse clientele, specializing in communication policies and international marketing strategies. Her proficiency in managing advertising budgets, forging strategic partnerships, and driving impactful digital and social media campaigns underscores her dedication to achieving exceptional results in every endeavor.

    Melanie holds a Master of Business Administration from Southeastern Louisiana University and a Bachelor of Fine Arts in Graphic Design from Louisiana State University.

  • Megan Wijers


    Megan Wijers


    Megan Wijers has nine years of experience in Human Resources and business operations.

    She began her HR career with a commercial real estate startup in Los Angeles, where she played a pivotal role in transforming the company from a fledgling startup to a prominent player in the Los Angeles multifamily market.

    Megan holds a bachelor’s degree in business administration from Northeastern University, complemented by an additional degree in Fashion Design. Her diverse skill set allows her to blend creativity with business acumen, resulting in innovative solutions that drive business growth.

  • Sherry Miller


    Sherry Miller


    Sherry serves as the Controller for Ox Hill Companies, leveraging over two decades of accounting expertise within the construction industry. She brings a well-rounded mind set for cash flow analysis, financial integrity, concise operating budgets, and future obligations into the company.

    Specializing in budgeting, financial analysis, compliance, and operational optimization, Sherry is adept at crafting strategies to foster and sustain financial growth. She thrives on consolidating processes and procedures to ensure regulatory adherence and robust financial integrity.

    With a rich background spanning both private and public sectors, including collaboration with prestigious firms among the big four, Sherry brings a wealth of diverse experience to her role.

    A distinguished alum of Radford University, Sherry holds dual degrees- a Bachelor of Business Administration with a Concentration in Accounting, and a Bachelor of Science with a concentration in Physical Earth Science and a minor in Geology. She furthered her education at Strayer University, earning a master’s degree in accounting with a specialization in Controllership.

  • Deirdre Smith

    Associate Director, Landscape & Sustainability - LEED GA, WELL AP

    Deirdre Smith

    Associate Director, Landscape & Sustainability - LEED GA, WELL AP

    Deirdre brings more than 30 years of knowledge and practical experience of the green industry to Ox Hill Companies.

    Before joining the company, Deirdre was the principal of Flower Power Inc.  Established in 1994, Flower Power provided high-end residential landscape management to clients in the Washington, D.C. metro area.  Creativity, attention to detail, and unparalleled service were the hallmarks of the company’s success: generating over $1 million in sales annually with a portfolio of over 60 accounts.

    Prior to Flower Power, Deirdre held a position at Ruppert Landscape, where she managed a number of prestigious accounts — including Washington Harbour, Georgetown Park, the Canadian Embassy and Ambassador’s residence, and The National Law Enforcement Officers Memorial.  In 1993, one of the gardens Deirdre directly supervised received a Grand Award for Total Residential Contracting/Maintenance from the Landscape Contractors Association MD-DC-VA.

    Her award-winning gardens were featured in publications such as The Boston Globe and Southern Living magazine.

    Deirdre is a graduate of Fordham University with a B.A. in English and Communications.  She attended George Washington University Landscape Design Certificate Program. She is LEED and WELL accredited.

  • Sibel Ozkan


    Sibel Ozkan


    Sibel has 28 years of experience in a variety of architectural settings. She has provided architectural design and consulting services across healthcare design, retail rollout projects, government projects, and private institutions. Her professional background spans both design and contract administration for retail and institutional projects.

    Before joining Ox Hill Companies, Sibel worked as a lead architect for private design companies and as a consultant and in-house architect for federal government projects.

    She holds a Master’s degree in Construction Management and Activity-Based Cost Management from Mimar Sinan University and a Bachelor’s degree in Architecture from Yıldız Technical University.

  • Kathleen Moran

    Interior Designer

    Kathleen Moran

    Interior Designer

    Kathleen brings more than 15 years of leadership and business development experience to Ox Hill Companies. Prior to joining Ox Hill Companies in the role of interior designer, she worked with leading commercial design firms StreetSense and RD Jones, specializing in hospitality and multi-family projects across the United States. Kathleen has successfully collaborated with multinational brands to deliver unique, dynamic environments driven by the end-user experience. She brings her expertise in brand building, placemaking, design, and construction administration to the team.

    Kathleen has a Bachelor’s degree from Virginia Commonwealth University School of Cultural Studies and a Master’s degree from Marymount University School of Interior Architecture & Design.

  • Ayse Ozkan


    Ayse Ozkan


    Before joining Ox Hill Companies, Ayse worked at MV+A as an architectural designer on mixed-use residential buildings and planned developments across the East Coast and at AVANTurs on federal office projects in DC. She has over eight years of project experience with various software, including Revit, CAD, Rhino, and SketchUp.

    While pursuing her architecture licensure, she serves as the Pratt Alumni DC Chair and the Pratt Equestrian Alumni Coordinator.

    Ayse graduated from Pratt Institute in 2021 with a Bachelor of Architecture and a Minor in Sustainability.

  • Audrey Tang


    Audrey Tang


    With over six years of experience in marketing, Audrey Tang is a dynamic professional with a proven track record in public relations and digital marketing.

    Audrey has successfully launched campaigns for diverse clientele across the globe, managing prestigious brands such as The Jefferson DC, The Darcy Hotel, and the luxury apartment Heming in the Metro DC area. Additionally, she spearheaded international cross-regional brand campaigns for Estee Lauder, Clinique, and Marriott in various cities across China. She has proficiently managed a substantial network of over 10,000 influencers, orchestrating their invitations to events and tracking their post-event content. Audrey has also devised and implemented highly effective paid promotion strategies on social media platforms. Demonstrating excellent writing skills, she has successfully garnered recognition and nominations for her clients from prestigious publications like Forbes, Travel and Leisure, and Washingtonian.

    With a Master’s degree in Marketing Analytics from the University of Maryland and a Bachelor’s degree in Business Administration from Fu Jen University, Audrey approaches her work with a strategic mindset, consistently driving growth and delivering exceptional results for her global clients.

  • Anthony Prosachik


    Anthony Prosachik


    Anthony Prosachik brings two years of experience as a Graphic Designer to Ox Hill Companies.

    He has interned as a designer with three different non-profit organizations and has worked on several freelance projects. As a highly conceptual designer, he excels in brand identity design and storytelling. Additionally, Anthony is a skilled photographer specializing in 35mm film photography, with five of his photographs professionally published.

    Anthony holds a Bachelor of Fine Arts in Graphic Design with double minors in Art History and Legal Studies from Susquehanna University.

  • JooYoung Ham

    Development Finance Analyst

    JooYoung Ham

    Development Finance Analyst

    JooYoung is a Development Finance Analyst at Ox Hill Companies and brings three years of diverse experience in real estate, architecture, and e-commerce.

    JooYoung gained the ability to successfully collaborate with multidisciplinary stakeholders through his experience in hospitality development and uses qualitative and quantitative analyses to achieve creative development.

    JooYoung holds a Master of Architecture (M.A.) from the University of Pennsylvania, where he honed his expertise in architectural design and theory. He earned her Bachelor of Science (B.S.) in Architecture from Lawrence Technological University. Additionally, JooYoung has completed coursework in Real Estate Design and Development at both the Wharton School and the Weitzman School of Design, further broadening his knowledge and skills in the interdisciplinary areas of real estate and urban development.

  • Ozodbek “Bek” Kosimov

    Finance Analyst

    Ozodbek “Bek” Kosimov

    Finance Analyst

    Bek has a rich background in finance and international business. During his tenure at Peterson Companies at National Harbor, he reported directly to the Vice President of National Harbor, Kent Digby, and the Assistant Vice President of National Harbor, Christopher J. Borgal. His responsibilities included assisting in the management of the company’s National Harbor portfolio, a mixed-use real estate development spanning over 425,544 square feet of retail space, 410,251 square feet of office space, eight hotels, and 1,404 residential units. During his internship, Bek created, monitored, and oversaw 37 distinct budgets across all asset types, collaborating closely with operations, marketing, accounting, and property management teams to ensure coordinated efforts and drive systematic improvements. He also played a key role in the construction and grand opening of Spirit Park at National Harbor, which features one of the tallest flagpoles in the Washington, D.C. metro area.

    Bek pursued his academic endeavors at George Mason University, majoring in Finance and minoring in International Business.

  • Stephanie Sun

    Property Management Accountant

    Stephanie Sun

    Property Management Accountant

    Stephanie Sun is a seasoned Property Management Accountant with 15 years of dedicated experience in both residential and commercial property management. Her journey in the real estate industry began in New York City, where she navigated diverse challenges and achieved numerous accomplishments.

    Committed to providing top-notch financial oversight of the assets in her portfolio, Stephanie is a lifelong learner who regularly attends professional development courses and stays current with accounting software and technologies. She holds a Real Estate Salesperson license in Virginia, an Master’s in Economics from the City College of New York, and a Bachelor Degree in Accounting from Shandong University in China.

  • Kristine Marshall

    Senior Accountant

    Kristine Marshall

    Senior Accountant

    Kristine Marshall brings extensive accounting experience to Ox Hill Companies. Her analytical skills were honed through a variety of positions in Fortune 500 companies, mid-sized companies, and startups. She has worked in many industries, including consulting, technology, healthcare, hospitality, and real estate development.

    Kristine holds a Bachelor degree in Business and Accounting from Franklin and Marshall College.

  • Natie Hara


    Natie Hara


    Nathaniel serves as the Human Resources Coordinator for Ox Hill Companies, with a wealth of diverse experiences across arts and entertainment, nonprofits, and education. Throughout his professional career, he has set a strong precedent for the HR department, building robust onboarding systems and increasing employee retention.

    Passionate about fostering a positive work environment, Nathaniel collaborates with team members to enhance workplace culture beyond the HR department. His background in music provides a unique perspective, emphasizing creativity and collaboration in problem-solving.

    A native of Fairfax County, Nathaniel graduated from the University of Virginia with a bachelor’s degree in music.

  • Evan Fan

    Evan Fan

    Office Assistant

    Evan Fan

    Office Assistant

    Evan is the Office Assistant for Ox Hill Companies. He has over 6 years of experience in the hospitality industry and had set the standard of excellence as head server at his previous work at a fine dining restaurant.

    He takes pride in keeping all public spaces at Ox Hill Companies well organized, cleaned, and stocked. His transferable skills from the hospitality industry have allowed him to take inventory of office and kitchen supplies, coordinate company events, and help wherever is needed in and out of the office.

    Evan holds an Associate of Science in Business Administration from Northern Virginia Community College.