I don’t work here (but I used to) so I have no profit motive in this: Krokidas & Bluestein, Boston. No firm understands non-profits like they do, and there are a lot of spiritually centered people there (Jews and Catholics, I don’t know about Lutherans) who will fully understand what you are trying to do. Honest and super smart lawyers trying to do good work. Won’t be cheap wherever you go, but good advice is worth the price. Be well (and God bless your endeavor).