Gittin 63 - Appointing an Agent for Divorce

Husband can appoint another man as an agent to deliver a Get to his wife, and wife can appoint another woman as an agent to accept a Get – because they appoint others like them to do what they are empowered to do.

Moreover, husband can appoint a woman for the delivery of a Get, and wife can appoint a man for the receipt. Since they can be a party to divorce, they can also act as agents in any capacity.