The lawyer who drew up my POA passed away. Who do I turn to when I have questions?

If he/she was the only attorney in tge practice, you will need to seek a new attorney. Also l, it is noted that you should review and edit your documents at least every 5 - 7 years.
Gold luck

Was the lawyer in practice with another lawyer or was he on his own? If there are other attorneys in the practice then make an appointment with one of them. If he was a solo practice then you will need to go attorney shopping and find a new one.

My hubs and I have DPoAs and other legal paperwork drawn up by a firm that did not necessarily "specialized" in elder law or estate planning but now we have an appointment to see a new one. I am choosing a multi-lawyer practice since I think there's more accountability and less opportunity for abuse when there are other eyes on activity. And also so that if the original lawyer passes, there is seamless transfer within the practice.

Was this attorney in single practice?  You may have to track down whoever's handling his/her cases, if only for close-out or reassignment.    In my experience, attorneys typically make arrangements for case management in the event of their death.

If not and he/she was with a firm, more than likely someone else in the firm will handle his/her cases.

The same happened to us. We went to a new lawyer and had the documents reviewed and updated. It was really informative as a different lawyer brought up things we hadn’t considered the previous time. Find a new elder law attorney