Maryland Code, Commercial Law § 12-307.1

(a) On any loan with an original principal balance of more than $2,000, if a borrower defaults under the terms of a loan and the lender refers the borrower's account for collection to an attorney who is not a salaried employee of the lender, and if the note, contract, or other evidence of the loan permits, the lender may charge and collect from the borrower court costs and attorney's fees not exceeding 15 percent of the amount due and payable under the terms of the loan.

(b) On any loan with an original principal balance of $2,000 or less, if a borrower defaults under the terms of a loan and the lender refers the borrower's account for collection to an attorney who is not a salaried employee of the lender, and if the note, contract, or other evidence of the loan permits, the lender may recover from the borrower court costs and attorney's fees not exceeding 15 percent of the amount due and payable under the terms of the loan, to be set by the court in the event of the filing of suit.