Our Team

Starting with its founder Bob Rice, our senior team is built of professionals with decades of experience as operators, bankers, and technologists in our target markets.

Sean O'Shea

Managing Director

Sean O’Shea is Managing Principal of Sienna Capital Partners in New York, where he provides capital raising and strategic advisory services to the private equity real estate industry. Previously, he was a senior investment professional with the Global Real Estate Multi-Manager Group of Aviva Investors, which managed over $8.7 billion in institutional real estate assets across separate accounts and co-mingled funds invested in over 150 underlying fund interests and secured positions. Sean joined Aviva Investors in 2008 as part of its acquisition of Madison Harbor Capital.

Sean served on the Investments Team at both Aviva and Madison Harbor since 2006, which reviewed over 1,700 prospective fund investments targeting the Americas, Europe and Asia and over $9 billion in secondary and recapitalization transactions. His investment experience includes sourcing and underwriting of primary investments in open and closed-ended real estate funds, secondary investments in illiquid partnership interests and restructurings and recapitalizations of funds and portfolios. In addition, he was the Fund Manager on four comingled real estate funds-of-funds that invested $375 million in global, US-only and emerging markets strategies. He was responsible for investment recommendations, portfolio analysis, asset management activities, quarterly valuations and investor reporting.

Sean is a graduate of Rutgers University and holds both an MSc in Real Estate from New York University and an MBA from Georgia State University. He is a member of the Pension Real Estate Association, the Urban Land Institute and the International Council of Shopping Centers.