Me. Rev. Stat. tit. 30-A, § 935

The county commissioners of Franklin County may obtain loans of money for the use of Franklin County, not to exceed $50,000, and cause notes or obligations, with coupons for lawful interest, to be issued for payment of the loans. Any loans of money in excess of $10,000 may be incurred only for the purpose of building, rebuilding, altering or otherwise improving county owned real estate and personal property in that real estate.