The deal was on the MLS but negotiations did involve a lot of patience and due diligence on my park of adding additional costs like perc test and survey cost to the seller's responsibilities.

Having family involved sounds great but project managing can be daunting and I would pay a 3rd party person to ensure things are truly done correctly if you are trying to find affordable contractors. 

How many people are going to be involved in the LLC?

You're better off going with an Estate Attorney rather than being involved in divorce attorney arena given the high level drama and emotions involved. 

I was hands on and involved throughout the process.

Turn the case over to a collection agency for a fee which will get a ding on their credit at least or file a writ of execution and then the sheriff gets involved   Google debt collection.  

Everyone else on your team will be transaction-based and not really involved after a purchase.We're in the Metro Detroit area, so you may want to follow our blog here on BP, but at least read the following posts:Follow our "Deep Dive" series we're doing about Metro Detroit cities and City of Detroit Neighborhoods: https://www.biggerpockets.com/...How to “Screen a PMC Better than a Tenant”: https://www.biggerpockets.com/member-blogs/3094/91877-how-to-screen-a-pmc-better-than-a-tenant-part-1-services-and-processesIn our experience you will need to:1) Learn to "Maintain to the Neighborhood", not your personal standards2) Tenant-Proof everything you can Hard surface flooring, not carpeting (too easy to trash) Same basic paint for everything No garbage disposals for them to break Only spring-type doorstops also with plate on the wall Glue rubber mats under sinks to prevent water damage Sheet aluminum on walls around stovetops, for easy grease removal Towel racks - screw 1x3 to wall studs, then screw rack to that Install low-profile downspout ext, not aluminum that always disappear Plan on cleaning gutters and leaves up in the fall as tenants won't Avoid garage door openers3) Have a great application screening process: Check credit for evictions & convictions, utility collections Focus on employment/income stability Require bank or debit card statement - you'll be surprised what they spend their money on!

We've been involved in the Indianapolis market for 10 years.

Is there more risk since more parties are involved?

If you are wanting to be involved I would look for a smaller independent team that would be a true "partner" on the ground so to speak!