
Four decades in the market.
The Martin Group is a multi-generational, California-based real estate investment, development and management firm.
Since its founding, the firm has developed 24 million square feet across office, retail and housing in California.
Justin Osler and Stephen Siri assumed leadership in 2015 and focused the firm on multifamily and student housing in California.
Justin Osler on LinkedIn (opens in a new tab)
Co-Managing Principal
Justin co-leads The Martin Group with Stephen Siri, running the firm's operations and overseeing its transactions, development and asset management. A Dickinson College graduate, he spent five years with Capital IQ in New York and Hong Kong, then worked with the Real Estate Opportunities Fund at Fortress Investment Group while earning an MBA in Real Estate Finance at Columbia Business School. He is a director of The Martin Family Foundation, which supports education, medical research and efforts addressing homelessness.
Stephen Siri on LinkedIn (opens in a new tab)
Co-Managing Principal
Stephen co-leads The Martin Group with Justin Osler and runs development across the firm's coastal California portfolio. He joined the firm in 2015 as a Principal after two years as a Development Associate at CityView, the urban real estate investment firm, in San Francisco. He holds a degree in Planning, Management and Development, with a concentration in Real Estate Development, from the University of Southern California, where he was co-captain of the water polo team and won four NCAA championships.
The Team
Justin Osler and Stephen Siri, the firm's Co-Managing Principals, work alongside this team on every project.
Casey McManus on LinkedIn (opens in a new tab)
Vice President, Asset Management
Casey runs the operating portfolio: leasing performance, budgets and property-manager oversight across the firm's communities.
Dan Siri on LinkedIn (opens in a new tab)
Chief Accounting Officer
Dan runs accounting, controls and financial reporting for the firm and its ventures, including the quarterly investor reports.
Michelle Hoffman
Bookkeeper
Michelle manages the firm's books: accounts payable, property-level ledgers and month-end close across the portfolio.
Patrick Swan on LinkedIn (opens in a new tab)
Director, Development
Patrick drives day-to-day development management, from feasibility and underwriting support through construction administration.
Rayanna Schmeling on LinkedIn (opens in a new tab)
Vice President, Development
Rayanna manages development execution across the firm's Northern California pipeline: entitlement, design coordination and consultant teams.
Rylan Ayers on LinkedIn (opens in a new tab)
Senior Director, Marketing
Rylan leads marketing for the firm and its communities: naming, brand and lease-up campaigns for every Martin Group project.
Will Johnstone on LinkedIn (opens in a new tab)
Vice President, Construction
Will leads construction across the firm's ground-up and adaptive-reuse projects, from preconstruction budgeting through delivery and closeout.
Stay in the work.
Principals are in every transaction: sourcing, underwriting, design review, construction, lease-up and asset management.
Invest where we have an advantage.
We invest only in California, and only in submarkets where we have direct operating relationships.
Build for the long term.
Underwriting, materials and unit design reflect long hold periods rather than a near-term exit.
Work with repeat partners.
We work with a small group of capital partners, and several have invested with us on more than one project.

Durable buildings that add to their neighborhoods.
We design buildings that hold up across cycles, using durable materials, efficient systems and floor plans residents can live in for years. West 27th Place and AV8 were both certified LEED Platinum.
Above-code energy performance on ground-up projects.
Partnership with municipalities and Business Improvement Districts on downtown revitalization.
Commissioned site-specific work. Recent commissions include Julie Chang (opens in a new tab) at Webster Eleven and Jet Martinez (opens in a new tab) at Centro Callan.
We hire operators.
We hire carefully and rarely, and only when we find people who want to be in the work.