However, the mortgage servicer may subscribe to a service which scans title transfers and when they find a “match” to one they’re paid to monitor alert the note holder.  

In your case, a second mortgage holder is much more willing to negotiate, since they will likely get nothing if the first forecloses.

What is happening in this case with respect to the actual Note Holder?

So what if the whole sale price is fought over by multiple Lien Holders including the IRS?

If you buy the home and sell as owner finance, you should record the buyer as the new home owner on the SOL and you as the lien holder.

My question is this: can we operate our own trust account for the security deposits without a broker since we are owned and managed independently, or do we need to hire a broker or other escrow holder to operate a trust account for us?

The owner has a mortgage on the property and will need the mortgage holder to release the property and let the owner sell it.

There are two lien holders.

I would do it now but I'm a lien holder so I have to wait 6 months til I can file ejectment.

Why is the only interest in my unit from voucher holders?