Even for a local bank, why would they add a layer of risk for themselves by offering a product they cannot sell to Fannie/Freddie, without at least adding in risk premium into the rate. 

A layer of 5/8" type-x drywall on the ceiling and min. 1/2" drywall around structures ( garage walls) supporting the partition would be required. 

Definitely a second layer of due diligence might be required.  

I guess you could say it's a "hot" hot water heater ;)The duplex only has 1 gas meter for both units.3 layers of roofs!

There can be several layers of regulations you have to contend with; especially with Well and Septic. 

We bought a 5.5 million retail center in Texas and are now looking up to 7 million for the next one.Retail NNN STNL or MTNL you can get passive at for quality at about the 1.5 million purchase price or higher whereas multifamily you are looking at about 80 to 100 units and quality about 75k a door or more so about 6 to 7 million in price to be more hands off with management in place and layers of repair people.Syndication you can diversify but you lose control and are sharing returns with the sponsor.

So another layer is this is purchased as a primary for finance reasons, but is intended to be an investment. 

Buying below replacement costs is one layer of redundancy, large down payments to keep your payments low is another, large cash reserves, geographic diversification, other sources of income, etc. etc.  

I would only take up the floor if it had multiple layers and was very uneven.  

Syndicating deals adds a layer of complexity, so just make sure you are wanting to add that complexity to your life/business.