In general, you'll want to verify that that the Section 8 applicant has a voucher and that it's appropriate for the number of bedrooms that your unit has. 

The income from the couple (which still needs to be verified) covers my minimum to cover rent but that includes the expectant mother's income, which I expect will stop once she has the baby and maybe before.

they might affect your home especially if it is already adjacent to a denser zoned area.If the home has a verifiable history of use as a duplex it may be grandfathered legal.   

That way you don't have to worry about verifying his actual expenses.You will want to come up with a clear draw schedule tied to specific work completion during the remodel process. 

Especially for your first investment with a new provider, the couple hundred bucks you'd spend to verify what they're telling you will pay you back in peace of mind.

I can provide a consent and confidentiality form in order to protect your identity.

The foreclosure was likely just for the lot the house was on, easy enough to verify by the legal description in the foreclosure/final judgment. 

Verify the information presented before making a purchase, instead of blindly believing promises of an easy ROI ... especially if you have no intention of visiting the area (also a bad idea). 

The community will have other identical units that have sold that act as comps.

But based on activity levels required by case law to have a T/B and some IRS pronouncements on the issue of NNN in related but not identical contexts (for purposes of determining if an international taxpayer has sufficient connections to the US to have what is known as "effectively connected income"), I'd say odds are high that NNN leases will not be viewed as a TB for purposes of the 199A deduction.