If they can't be civil together, meet them at a Panera or Starbucks seated in different areas and talk to them individually and see if you can come to terms.

Litigation is slow & expensive.

We open probate but get little traction until a very smart, young litigator attorney sues and settles with the guy who buys at trustee sale.

Now, it is possible they won't abide by the lease, in which case you'll need legal help (not the cops, they don't enforce civil contracts, only criminal law and court orders). 

There's a clause that can say if the trustee feels there's a chance of litigation against the beneficiary then the trustee needs to resign and pass the trust agreement to the successor trustee without saying a word.

The property is in Tower Grove South near Civil Life.

I made the decision to just write a check to them, and we ended up doing more work together.Reasently I took a hard money loan out on a condo in Anaheim, Ca I fixed and sold the condo in a mater of 3 months with a expected profit of over $50,000.Then the other shoe fell, everyone starting with me missed the fact that the HOA had a few words in one sentence "possible litigation" and we all just missed it.  

If, for example, you were to renege after payment, the buyer would have to come after you to rightfully gain their property, but they would have plenty of remedy from a simple civil suit all the way up to possible fraud charges (i.e., it is against the law to sell something, collect the funds and then refuse to surrender the item). 

Simple question for those of you more entrenched in the real estate world.Im a civil engineer, and i work for large developers and REITs in NYC.

You need to look at the service members civil relief act.