The National Park Service is leasing the George Hall House, a fully renovated 4-bedroom, 3-bathroom residence at 831 Lexington Road, Concord, MA, for low-impact, non-transient residential use. The lease term is a maximum of two years, with lessee termination rights beginning 90 days before the end of the first year. The annual fair market rent is $54,000, payable in monthly installments of $4,500. Bids must offer at least this amount, and the highest responsive bidder will be selected, subject to financial capability and reference checks. The property is located within Minute Man National Historical Park, and the lessee must maintain its historic appearance as part of the park's public relationship.