Md. Code, Fam. Law § 9.5-309
Current with changes from the 2024 Legislative Session effective on or before 7/1/2024, from Chs.. 2 through 1049
Except as otherwise provided in § 9.5-311 of this subtitle, the petition and order must be served, by any method authorized by the law of this State, on the respondent and any person who has physical custody of the child.
Md. Code, FL § 9.5-309