For approval, is it possible to sign some attestation that I will payoff the loan with the first sale then arrange for it to be paid between the close of the first home and the next purchase (will actually have to do this and show the lender or is the attestation enough, or will they somehow arrange it at escrow)?

This is directed at others who have raised investment money in the past. I've raised cash for equity in the past but I'm interested in offering private second position debt that behaves similar to mezzanine debt and c...

This type of arrangement is more of a private investor transaction (versus institutional investor funds). 

Sometimes the sellers will outright request this as a term, but it is a nice option to offer if the sellers are still arranging their own plans or looking for another property in the area and are in escrow themselves.

I am not advocating no zoning; for instance, we would not want a battery factory or porn shop next to a preschool, but we are far over regulated when it comes to land use.

And, even if the landlord was to remediate, you cannot live there during that time - nor can anyone else, authorized or not.I hope you will take care of your health and your credit (an eviction is a FICO killer) and make arrangements with your landlord to move. 

Are there any verbal agreements or arrangements between the current Landlord and Tenant?

I agree that certain things need to be functional before move in or arrangements made.

Property is arranged as a detached 1 bed/bath unit and a duplex: 2 bed/bath owner's unit & a vacant mirror unit.Rehab #1 was the other half of the duplex: 2 bed | 2 bath, 1,180 sq ftRehab #2 was the detached SFR: 1 bed | 1 bath, 900 sq ft What made you interested in investing in this type of deal?

There are a few places where this isn't the case, so check your local laws.Tell the tenants that you will be there and you will let the contractor in so they don't need to arrange it around their schedule.