Maybe they'd like to get a new place under contract before giving notice to their current lessor? 

Also, I believe there’s really only one PM company in the local Marquette county area that has a Real Estate license, which is needed to legally manage other peoples rentals in Michigan.

If the seller is trying to avoid legal issues with the city for illegally operating a property I would get out of that.

There are occasionally opportunities for grandfathering if there is evidence of legally established conversions that were done previously, but no permit records exist to show it was done. 

Good news is our land is where all of the next-door houses are (free houses, I think legal issues). 

What’s the best approach to establish business-to-business contracts with insurance companies?

You may consider terminating the lease depending on how much time remains, your skills, the legal system, and other factors.Based on what you've said, I am concerned there's someone else occupying the home or something else is going on.

We go by a simple concept, just do what you agreed too in the contract, nothing more, nothing less - if that happens then we all win.

Be an area expert on contracts, zoning, value add components, contractors, and so much more. 

They were a bit older than me and a smooth talker, and he knew everything about contracting... allegedly. .