David Shaffer

Managing Partner

Experience / Professional History

David Shaffer has eighteen solid years of experience in commercial real estate in the Texas markets. His experience includes investment sales, project leasing, property management, and asset management for commercial and multi-family assets. David began working for a residential developer while in college and quickly started his own business as a sub-contractor in real estate development. He then went to work at Marcus & Millichap after graduating from college, where his focus was investment sales in multi-family and commercial properties. After his stint at Marcus & Millichap, Shaffer joined GVA Cawley as the managing director of investment sales.

In 2006, David started what would become Wellington Realty as David Shaffer Realty Advisory Company. The company has been in business for over ten years and has grown into the major markets in Texas. Wellington Realty manages over $100 million+ in real estate assets for clients in the major markets in Texas. Throughout the years, David’s approach to service has remained simple: “The ability to perform for clients leads to long-term relationships.”

Education

  • Bachelors of Business Administration – Finance
  • Master of Science in Entrepreneurship – Southern Methodist University – Cox School of Business
  • Graduate Finance Certificate – Southern Methodist University- Cox School of Business

Professional Affiliations and Certificates

  • Texas Real Estate Broker
  • Certified Commercial Investment Member – CCIM Designation
  • North Texas Commercial Association of Realtors – NTCAR
  • International Council of Shopping Centers – ICSC
  • Urban Land Institute – ULI
  • CPM Candidate Designation – IREM Institute

Leadership and Organizations

  • Business Executives in National Security (BENS) and Vistage (A CEO Network)

Mark Nusbaum

Partner

Experience / Professional History

Mark Nusbaum, Partner of Wellington Realty, has thirteen years of property management experience. Mark brings a hands-on approach, playing an integral role in the day-to-day operations of each property managed by Wellington. Having witnessed the demise of many properties because of poorly chosen management teams, Mark set forth to create the type of management company that would impress any multi-family owner.

Mark has led a team which has instituted the systems, personnel, and metrics needed to maximize operational efficiency and asset values. Property managers, assistant managers, leasing agents, and maintenance personnel are educated, trained, and developed within a very proactive system of protocols and procedures to deliver superior operation results and are held accountable to these results. Mark formulates all budgets; using variance analysis reports, he breaks down the reasons for successes and failures of each property and then institutes the right course of action. He reviews all costs and expenses and works with his specialized marketing team to drive rents high through detailed Market Rent Analysis.

Mark is responsible for communication with ownership about the continuing process of creating value for clients through the metrics mentioned above. By continuously investing in the people that deliver excellent results in our organization, Mark has been creating a strong sense of work ethics and delivering superior results with respect to client assets.

In Mark’s freetime, he enjoys a good workout in the gym, spending time with his family, and reading biographies of people who have impacted the lives of others.

Education

  • Business Systems in Accounting – University of North Texas

Professional Affiliations and Certificates

  • Apartment Association of Greater Dallas
  • Apartment Association of Tarrant County
  • Houston Apartment Association

Leadership and Organizations

  • Various DFW area Inner-City Missions

Jack Allen

Partner

Experience / Professional History

Jack brings to the table thirteen years of experience in commercial real estate. Jack has developed a skill set that spans the spectrum of full service brokerage with years of experience in research and analysis, investment sales, asset management, project leasing, and tenant representation. Having begun his career with Marcus & Millichap in 2004 in research and operations for the national investment sale company’s Dallas office, he advanced the office’s research and technological capabilities. Upon becoming a sales intern and subsequently a sales agent with Marcus & Millichap, Jack focused on office and industrial investment sales and made his senior’s group the top industrial investment sales team in the Dallas office.

Having started Wellington Realty in 2009 with partners David and Mark, Jack helped build the property management division before shifting to build Wellington’s project leasing and tenant representation team. This array of experience contributes to Jack and Wellington Realty’s spectrum of services for individual, private equity, and institution clients.

Jack Allen is a Dallas native, Eagle Scout, and former Aggie Corps of Cadets member. With the latter he was a member of E-1 Athletic Company, and also served on 1st Brigade and 2nd Battalion Staffs. In Jack’s free time he enjoys traveling, spending quality time with his fiancé’, cycling, and exploring Dallas’ vibrant restaurant and brewery scene.

Education

  • Bachelor of Business Administration in Marketing – Texas A&M University, Mays Business School

Professional Affiliations and Certificates

  • Texas Real Estate Sales Person
  • North Texas Commercial Association of Realtors (NTCAR)
  • International Council of Shopping Centers (ICSC)
  • Urban Land Institute (ULI)

Leadership and Organizations

  • Boy Scouts of America, Eagle Scout
  • Texas A&M Corps of Cadets