Colliers International recently represented National Development and Charles River Realty Investors in four leasing transactions totaling 20,890 s/f at 51-63 Franklin St. The leases bring four new tenants to the property, including Architectural Engineers Inc., Microdesk Inc., Doyenz, and the Consulate General of Mexico. On behalf of the ownership, the Colliers team of Lawrence Epstein, Lauren Vecchione and Kevin O'Brien has more than doubled the total occupancy at the 66,032 s/f building since ownership acquired the asset in 2011. "While a repositioning and awareness campaign played a large role in the success of leasing the portfolio, the strong local ownership, on-going commitment and responsiveness of both National Development and Charles River were the keys to attracting these high-quality tenants," said Epstein. Architectural Engineers Inc. (AEI), a provider of mechanical, electrical, plumbing, fire protection, and structural engineering design services, signed a 9,346-square-foot office lease to relocate from 77 Summer Street in Boston, Mass. AEI was represented by Ron Perry and Kevin O'Brien of Colliers International. Microdesk Inc., a design technology consultancy providing services to help firms successfully plan, design, build and operate land and buildings, executed a 3,175-square-foot lease to relocate from One Winthrop Square in Boston, Mass. John Carroll III, John Dolan and Lauren Vecchione of Colliers International represented Microdesk in the transaction. Doyenz, a leading provider of cloud-based recovery services for small and mid-sized businesses, signed a 3,113-square-foot lease to establish an East Coast office. Doyenz was represented by Tom Ashe and Jeff Landers of Richards Barry Joyce & Partners. The Consulate General of Mexico in Boston (Consulate), a diplomatic office of the Government of Mexico, monitors and protects the rights and interests of their nationals abroad, establishing trade representation, and advising travelers on visa regulations, passport requirements and other essential information. The Consulate signed a new 5,256-square-foot lease to relocate from 20 Park Plaza in Boston, Mass. Eric Solem of Landmark Real Estate Advisors represented the Consulate in the transaction. Prominently situated along prestigious Franklin Street just two blocks from Post Office Square, 51-63 Franklin Street is a 66,032-square-foot portfolio of adjacent buildings exceptionally well-located in the heart of Boston's Financial District. The property provides its tenants excellent access to public transportation, ample parking, and a full complement of dining, hotel, retail, fitness and service amenities. The property is also a convenient walk to South Station, Boston's busiest transportation hub and a critical link between downtown and the airport, the suburbs, and all points along the Eastern Seaboard. Suites from 3,070 to 9,295 square feet are still available. About National Development National Development (www.natdev.com) is one of New England's leading real estate operating companies. Founded in 1983, the Newton MA-based company provides fully integrated development, construction, acquisition and asset management services. With over 20 million square feet in completed projects, National Development's extensive operating platform encompasses office, retail, industrial, medical/lab, multi-family, senior housing and hotels. About Charles River Realty Investors Charles River Realty Investors LLC (www.crreal.com) is a private equity real estate investment firm that employs the extensive operating and investment experience of its team to make value-added real estate investments on behalf of its institutional clients. The firm and its principals have successfully acquired and/or developed real estate with a value of over $3 billion. About Colliers International Colliers International is the third-largest commercial real estate services company in the world with 12,500 professionals operating out of more than 500 offices in 61 countries. A subsidiary of FirstService Corporation (NASDAQ: FSRV; TSX: FSV and FSV.PR.U), it focuses on accelerating success for its clients by seamlessly providing a full range of services to real estate users, owners and investors worldwide, including global corporate solutions, brokerage, property and asset management, hotel investment sales and consulting, valuation, consulting and appraisal services, mortgage banking and research. Commercial Property Executive and Multi-Housing News magazines ranked Colliers International as the top U.S. real estate company and the latest annual survey by the Lipsey Company ranked Colliers International as the second most recognized commercial real estate brand in the world. Colliers International's Boston office has been providing its clients with innovative real estate solutions for over 130 years. In addition to its full platform of integrated services, it is one of 21 owner/members of Strategic Alliance Mortgage (SAM). 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