Our family too, has had to deal with probate issues; some of which should have been addressed 25 years ago and never were. (Mineral interests started with nine brothers and sisters back in the 1940’s - you can imagine the nightmare it was by 2010, after it had turned into a multigenerational, multistate, multifaceted headache.)
My brother and I pretty much threw up our hands in frustration and hired McKennett Forsberg Voll & Gjovig, P.C. in Williston. (This is not intended as an advertisement - just sharing our personal experience.) Our experience with this firm was very positive. They resolved all of our outstanding issues, in multiple jurisdictions, in a timely manner. My brother and I were both pleased with their services and cost.
I’m sure there are countless families in similar situations. We thought it best to just clean it up so future generations won’t have the headache. We also created a Gmail account as a repository for all things relating to the issues, so future generations have access to the history. (We emailed ourselves PDF’s of all the documentation etc. to store in the Gmail account.)
I hindsight, I’m very glad we didn’t try to resolve the issues on our own. I suspect we may have created more problems than we solved.