What used to be the Triangle Fdn is now Equality Michigan. They do both advocacy as well as referrals for a number of issues. If you don't see something relevant on their resources page, give them a call.

https://equalitymi.org/

Good luck!

Edited to add:
Here are two forms that come up on a number of lists - if they're not a fit perhaps they can suggest others in/near Ann Arbor.

https://bassettmurray.com/lgbtq-law/

https://iglesiamartell.com/lgbt-issues/

I'm not familiar with them beyond their areas of practice and the general vibe, and the places they show up.

While their sentiments are valued, untangling Ohio & feelings & property issues can be sticky.

I feel I need legal coverage for stuff