Many homes have minor leaks right now, but they are not big enough to even smell, but as soon as the gas guys pressure test it, they find it.

Then check it every so often....Most cats cannot resit the smell of fresh tuna fish just out of the can.If it escaped outside and the food is not eaten (by that cat), a cat loving neighbor probably cat-napped it. 

I'm a very able body willing to work for free on a rehab over the weekends.

That's ok.Basically what you're seeing is sharks circling the smell of blood in the water.

Any one know of any body that will lend on a Single family home 60% LTV.

Our tenant just moved out four days ago, and while taking care of yard maintenance (that they were supposed to take care) I smelled the worst smell EVER!

Credit to you for thinking out of the box but it won't pass the smell test

The flooring was already removed as there had been pets going to the bathroom and the urine smell was strong.

The only thing that trumps this would be cash.Had this happen once and came out smelling like a rose.

Use the 1% rule to see if it passes the smell test unless you know something like seller never raised rents and they are below market rates in their current condition or you are getting large discount compared to current market price.In today’s RE environment owner finance deals are usually given by tired landlords that want out of the game or skilled investors who want a return on their money and know their asking price is higher than it can normally appraise given current condition with traditional financing.This isn’t a deal.