I have handled a few personal legal matters myself by drafting with Lex.page (a very useful tool for any writing but you can also accomplish about the same thing with Google Docs and Gemini.)

It’s also important to perfectly prompt the “AI” promptly to perfection. You have to tell it who it is, what it is doing and make sure to be specific about the scope and legal matters involved.

Break it down into smaller chunks and once you have a draft you like, send the draft to another “AI” and ask it to play as a lawyer on the other side of your equation and “rip apart” the draft letter you wrote like any good lawyer would.

Make your two “AI” models adversarial to each other until the final result is a rock solid document.