Then when things go to hell they walk away and pretend they had no involvement with the Property Manager even though they facilitated countless transactions positioning themselves as the owner. 

There are so many people involved in a real estate transaction and it's important for everyone to work together so that the transaction actually closes, and closes on time.

Spend LOTS of MONEY on mass marketingThe "rate locked affect" is limiting a large portion of the market and stopping transactions from happening.

Or am I expected to have that broker work both sides of the transaction?

In a subject to transaction the buyer is taking over the responsibility of the seller loan without the lender knowing about it. 

Even doubled sided transaction the responsibility of fiduciary is in your favor.  

Cross my fingers, have had none and hope to not have any. 

PMs can do very well over time and leverage the relationships they build in to transactions too. 

The reason I say this is  a double close, is because we would require the seller to be open to seller carrying the amount that we helped cover as a second note against the property.Ex. 1st transaction: DSCR covers 70% we help cover the remaining 30%.......close transaction.2nd transaction: Title opens a second escrow account and creates a 2nd lien for say 40% against the property so we can get our funds returned.

Strict IRS Rules: No personal use; prohibited transactions lead to penalties.2.