Mayer Brown adds former Goodwin partner Mary McQuinn to strengthen Washington real estate practice

Washington office expands real estate and hospitality deal capabilities

Mayer Brown has hired real estate attorney Mary McQuinn as a partner in Washington, D.C., adding capabilities in complex commercial real estate transactions and hospitality-related deal work. The move places McQuinn in the firm’s Real Estate and Real Estate Funds practices, continuing a recent pattern of lateral hiring in the sector.

McQuinn previously practiced at Goodwin, where her work focused on joint ventures, real estate finance and hospitality and leisure transactions. Her client base has included institutional investors, real estate funds, private real estate investment trusts, and hotel operators across acquisitions and dispositions, financings, developments, and portfolio transactions.

Transaction focus: joint ventures, financings, and hospitality assets

McQuinn’s practice centers on structuring and negotiating multi-party real estate deals, including joint venture formations and financing arrangements that support development and investment strategies. Her experience also includes hospitality assets and operating-real-estate matters, such as hotel-related transactions and the negotiation of long-term hotel management agreements for properties including resorts and branded residential components.

• Complex joint ventures and equity arrangements for commercial real estate investment
• Real estate finance, including construction and permanent financings
• Development, acquisition, and disposition transactions across multiple asset classes
• Hospitality work involving hotels, resorts, and related operating-real-estate structures

Part of a broader buildout tied to Goodwin departures

Mayer Brown described McQuinn as the latest in a series of additions connected to Goodwin’s real estate bench. The firm has publicly identified multiple recent hires for its real estate platform from Goodwin, including a three-partner group added in Northern California in late 2025, as well as counsel and associates in California. The hiring of a Washington-based partner extends that recruiting trend to the firm’s D.C. office.

The firm positioned the hire as strengthening its hospitality and real estate platform and expanding capacity for complex transactions involving institutional capital.

What changes in Washington

McQuinn’s arrival adds another senior transactional lawyer to a Washington office known for work at the intersection of business and regulatory policy. While large commercial real estate transactions are frequently negotiated across multiple jurisdictions, the addition of a partner based in Washington can be significant for clients seeking deal execution alongside federal-facing capabilities, including regulatory and policy considerations that can shape project timelines, financing structures, and investment strategies.

McQuinn is admitted in the District of Columbia, Massachusetts, and Ohio, and her practice has included matters spanning multiple U.S. markets and cross-border hospitality activity.