Sources Sought GENERAL SERVICES ADMINISTRATION (GSA) seeks to lease office space in Amherst, MA. The space should be within the city limits of Amherst, MA and have a minimum of 19,503 square feet and a maximum of 20,000 square feet. The space should be of office type and should include 19 parking spaces. The lease term is 5 years and a fully serviced lease is required. The space should not be in the floodplain. The Government will consider alternative space if economically advantageous.