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, 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 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.

Martiena L. Schneller brings over 15 years of expertise in urban development and design to her role as Vice President of Design and Development at Ox Hill Companies. Recognized as one of Washington Business Journal’s 40 Under 40, Martiena has led the design and execution of projects totaling over $6 billion, shaping some of the most prominent communities across the region.
Before joining Ox Hill Companies, Martiena held senior leadership roles at Hoffman & Associates, where she directed the development of iconic projects like The Wharf in Washington, D.C., along with The Darcy and The Flats in Bethesda. Her work has transformed urban landscapes, enhancing communities with vibrant residential, commercial, and cultural spaces. She also expanded Hoffman & Associates’ portfolio with high-profile projects such as West Falls, the largest development in the history of Falls Church, Virginia; Seaboard Station, one of the largest developments in Raleigh, NC; Parcel B at Audi Field in Washington, D.C.; and several residential projects across Arlington, Alexandria, Richmond, and Charlotte.
Martiena earned her Master of Architecture from the University of Maryland and holds a Bachelor of Architecture from Lehigh University.

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.

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.

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.

With over seven 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.

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.