Whether or not it's worth it to you to retain an attorney and potentially take on the costs of litigating the matter down the line depends how badly you want the property and how good of a deal it is.  

Litigation is slow & expensive.

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.  

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.

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.

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.

But I've litigated few cases where the client was ultimately able to convince the court to hold that the judicial sale wiped out the ownership interest of a option holder and lien interest of a creditor despite defective notice.

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). 

Never had a problem with this... although there are probably some rules about boxing the stuff up and moving it to storage.. but I figured if they lost the home they generally do not have the money to litigate.. so it was a risk I was willing to take..'