I own 4 investment properties that are doing well and I bought all of them through the MLS.You are unlikely to get smokin' hot deals on the MLS, at least on the surface, especially if they have been listed for a while. 

I've seen some that on the surface (their website) seem very lender friendly with even recommendations regarding certain loan types for strategies yet are non-existent in the BBB, NMLS, or sometimes don't even have recommendations/reviews on any platform I can find.

The attached master bath includes stone floors, solid surface counters, and Tub/Shower Combo.

I am being told the process to take care of it is scrubbing all walls and surfaces including appliances with a specific cleaner for this purpose, then to treat the walls with a product like killz and then a couple layers of paint.

You have to get your pros in there to assess the root cause which might be as simple as bad surface water run off management.  

Drive on the local/surface streets instead of zipping through on the freeway.

Private lending may sound risky on the surface, but it's actually a very safe, secure position.

Ideally we would have an open area of 2500-10000sqft in one area and the ability to house those who travel into the area for these trainings in a separate area from the "training center" portion of the building, whether upstairs or adjoining units.

No, as it seems to be "dust particles/control on wood surfaces".  

I could go on and on but it's a little taste and scratch on the surface.