Md. Code, Family Law § 10–201

(a) A spouse may not willfully fail to provide for the support of the other spouse, without just cause.

(b) An individual who violates this section is guilty of a misdemeanor and on conviction is subject to a fine not exceeding $100 or imprisonment not exceeding 3 years or both.

(c) If an individual is convicted under this section, the court may order the individual to pay any fine wholly or partly to the spouse.