I know the 4-plex you are referring to. I

I have read about BRRRR and such, but until I was put it in terms I could understand/relate to, I wasn't full appreciating the concept.  

The landlord then said to me as long as someone is in "possession" of the unit, I would still be liable.I ask if this person does not qualify for their own lease, what coarse of action to I have to get my name off the lease.  

If you can attend morning meetings, another great one to go to is Winvestors, held every Wednesday morning at 9 am.

Try reaching out to Marshall Bank....They have locations in the DMV area.Another person I would reach out to is Shawn Williams of Academy Mortgage.

Due to the unknowns from not being able to inspect the crawl space, and a couple other issues the seller wouldn't agree to, I walked. 

It all boils down to is your vision or what a person sees.  

[drywall]), insulation (more bat in the cavity but not too much where you mess up the 3rd factor , decoupling: resilient channels and double stud walls are for this, The 4th item is sealing openings and penetrationsThere a lot of different levels and it comes down to is this going to be a separate unit or just a finished basement.

What it comes down to is what you want out of an agent.

Having a realtor to talk to is great, but using a realtor for an off-market deal may be more of a hassle than just asking questions here on BP.