Md. Code, Real Property § 8A–402

(a) An entrance or exit fee is prohibited.

(b) A fee may not be charged:

(1) In connection with the renewal of a rental agreement; or

(2) To determine if a resident is qualified under § 8A-202(c) of this title.

(c) Except if a material change results in the deterioration of the home, a park owner may not charge a fee for inspecting a home for resale more than one time within a 12-month period.

(d) The fee for inspecting a home for resale may not exceed $60.