Also, due to increased liability exposure property insurance premiums is adversely impacted causing fewer and fewer building owners to seek out ATM tenants.

You should have given written notice on the first day you became an owner and told them they must be out before February.

We're still waiting for the owners bank to let us know if they'll actually help us or not.

I actually recommend house hacking as a first step if possible. 

and is there a particular document I can ask for from the current owners? 

(Property Meld for one)--- Owners often think a PMC can just enter a tenant's home to make repairs, but don't really understand the potential legal issues of entering when a tenant is not home.--- Owners don't understand the percentage of maintenance appointments tenants miss!

It makes sense for house mates, spouses etc. to be Additional Insured on a renter's Insurance policy if they also live there and keep their stuff there (although I think anyone on the lease is typically covered anyway).

I don't know anything about their policyholder experience.However, every homeowners policy I've ever seen, even with a "home sharing" endorsement or rider, requires some owner use of the property. 

They're not out to just make money, but take care of homeowners, business owners, partners, etc and their well-being. 

I knew that the property would be easy to sell to another investor or owner occupant, as it was affordable and a 3BR/2BA of 1,650SF so it checks the boxes for many prospective buyers.