The generic answer is yes but these facts you listed do not make any sense. If your ex spouse is sending out subpoenas then you are divorced from him so who are you divorcing now? And what does your mother and a POA have to do with it? So I would have to retract my answer and send you to consult in person with a divorce attorney.
IF YOU FOUND THIS ANSWER "Helpful" or " The Best Answer" YOU CAN THANK ATTORNEY RADDATZ BY MARKING IT SO because Avvo awards the attorney points. MS. RADDATZ is donating her time and talent by answering questions to help those in need of legal information. This is NOT a consultation and in no way creates an attorney-client relationship. YOU SHOULD ALWAYS PERSONALLY CONSULT WITH AN ATTORNEY IN YOUR LOCAL AREA who has specific expertise in the area of law you are asking about.
You can have the clerk issue a subpoena to mickey mouse--that is no great accomplishment. The operative question is whether the subpoena encompasses material that is either independently relevant [to the issues of the case] or likely to lead to the discovery of relevant material. If not, your focus should NOT be on the fact that a subpoena was issued, but rather on filing a MOTION TO QUASH SUBPOENA on the basis that it seeks irrelevant material....is abusive, harassing, duplicative or about 10 other grounds that any qualify lawyer could spout off in his sleep.
I hope this helps and that you will be successful in this effort as well as the overall resolution of your case.
The author provides the preceding information as a service to the public.
Author's response, as stated above, should not be considered legal advice.
An initial attorney-client conference, based upon review of all relevant facts/documents, will be necessary to provide legal advice upon which the client should then rely.