Executive Management Team

The Griffis Residential executive team leads more than 200 real estate professionals, including site-level property management associates supported by deep corporate resources.

Chairman and Co-CEO

Ian Griffis

Ian Griffis is Co-Founder and Co-CEO of Griffis Residential, a Denver-based apartment investment fund manager and property operator with approximately 8,000 units under management. Mr. Griffis is Co-CEO of the company and is a member of… Read More


David Birnbaum

Mr. Birnbaum has been Co-Chief Executive Officer since the founding of Griffis Residential and the Prior Funds, sharing responsibility for strategic management of Griffis Residential and its investment activities. In addition to being a member… Read More

President and COO

Tom Barta

Mr. Barta, President and Chief Operating Officer, is responsible for Griffis Residential’s asset management initiatives and overseeing property operations and finance functions. Mr. Barta is a member of the Fund V Investment Committee. Prior to… Read More


Chris Souther

Mr. Souther is the Chief Financial Officer for Griffis Residential and is responsible for finance, reporting, accounting, and tax administration. Prior to Griffis Residential, Mr. Souther was with Denver-based D4 Urban, LLC, where he served… Read More