70-72 Main Street, Belfast Represented by Aaron Crossman Fantastic investment opportunity in downtown Belfast offering an 8% cap rate. This is the entire main floor which comprises two retail spaces and two hotel-like rental units that can be rented on a nightly basis. Located in the heart of downtown Belfast this is a high traffic area that is close to everything. Click for More Information on this Belfast Maine Real Estate Listing. Click for More Belfast Maine Homes For Sale.