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. 

But this is not what I was asking about.I just need to know what we can do to be able to go through with this deal withoit testing/fixing now, before sale and still be be protected legally - short of buying the house, testing, finding there is some lead somewhere beneath the many layers of paint this house must have collected since the 20's (it will be for sure), kicking the renter out to fix the problem by paying a lead cert contractor to strip off all the paint (large expense).We cannot do this now - or maybe not even later.The seller (current owner of this house) bought in 2014 without testing and simply disclosed "I don't know". 

It’s all a layering effect though.