The American Public Power Association has signed a 20-year lease for the entire building at 2301 M. St. NW for an aggregate rental of more than $14 million. Peter M. Speier and Edward I. Geisinger of the Washington office of Julien J. Studley Inc. were the brokers in the transaction. The new building has five floors of office space and three floors of residential co-operatives.

* East Coast Parlor Tours, a Washington-based charter bus line, has leased a 103,600-square-foot lot and a 12,285-square-foot garage at 2019 West Virginia Ave. NE. Coldwell Banker represented both the landlord, Steuart Investments Co., and the tenant.

* Hahn Shoes has leased 4,300 square feet of space in the Washington Business Park in Lanham. The space will serve as an office and warehouse for store displays. Franklin Paulson of the sales and leasing department of Weaver Bros. Inc. was the agent for the transaction.

* The Smithy Cos. have been awarded an exclusive leasing contract from Quality Inss Inc., for its office building under construction at 10720 Columbia Pike in Silver Spring.

* Walker & Dunlop Agency Inc., the insurance division of Walker & Dunlop Inc., has been appointed broker-of-record for the property and casualty insurance account for L'Enfant Plaza Properties Inc. The account comprises several office buildings, including the Loews L'Enfant Plaza Hotel CAPTION: Illustration, American Public Power Association will rent 2301 M St. NW, above, for 20 years at $14 million.