Maintaining Access to Recreational Industry and Necessary Adjustments Act or the MARINA Act This bill addresses rental amounts, administrative fees, and lease terms with respect to certain marinas. The bill establishes that sales of food, beverages, fuel, boats, boat motors, and boat lifts must be capped at 1% for calculating the amount of rent charged to the operator of a marina for a lease. It directs the U.S. Army Corps of Engineers to establish a standardized fee schedule for administrative fees assessed to operators of marinas that specifies under what circumstances and at what time such a fee is to be assessed. Additionally, the bill specifies that lease terms for a marina shall be at least 50 years for an initial lease or first renewal of a lease and at least 25 years for any subsequent renewal.