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 Ann., Fam. Law § 9.5-309
Official source: Maryland General Assembly. Reproduced from public-domain Maryland statutes; confirm against the official source for the current text. Not legal advice.