I had two lines of credit one unsecured for 5 million ( check book) and another for 10 million that we would secure them up with .. but you need time to do that bank required appraisal etc before we could tag the secured line and even at that they only lent 72% in these commercial loan structures..

By working with motivated sellers, I’m able to secure below-market deals and pass those savings onto buyers.

For example I have an account for each property and a sub-account just for the security deposits for those properties.

That has stopped but we do feel it to be a security issue. 

I know most BP note investors deal in SFR notes exclusively, or at least mostly, and for myself 98% of my note investments are notes secured by commercial properties.  

ONly money spent securing the house against waste.

Also, added smart-deadbolt locks to each bedroom for extra security in house-hack situation.What was the outcome?

The seller was motivated to close fast, allowing us to secure the deal and set the stage for a profitable resale.

Syndicators do this because most passive investors are not sophisticated enough to realize the "security" of the preferred return means they usually are giving up the potential for massive returns if the deal does well.This next comment would apply for all syndication.  

Cameras, security system, motion lights, cage lock on hvac, etc.They were stolen cause it was vacant and had a for sale sign.