They'll essentially put a holey tube under the building, piped to the roof so the gas can pass through and escape without seeping into the building. 

I'm in California where you can buy a house for 200k, but it would have no roof and be on a lot less than 1 acre.

His company is Bullseye Real Estate We've used him mostly for small scale repairs, i.e. build a bathroom, repair the roofing, patch drywall, paint, kitchen install, masonry repair (front steps) etc.

In addition, owner loaned us $100,000 at 6% simple interest for one year to make major repairs (installed heat pumps, replaced boiler (for heating water only), replaced some siding and major roof repairs.)We were very clear with each other what we each wanted out of the deal.

The costs rack up pretty fast and you'll need to do it a few times before your phone starts to ring. 

You may pay 1.25X - 1.5X for a roof because you aren't repeat business whereas a GC uses the same roofer many times a year and they get a great discount.  

Seller finance and only pay taxes on the portion received the first year (Maybe zero if they don’t last 9 months)Lastly they might be able to just rack up the bills up paid and have them paid by the estate. 

Even with holes/tarp on roof and plywood over windows, the place still smelled like smoke. 

The deal that pays all your costs may also come with tons of repairs or problems so its ok to buy a nicer property that will not need a new roof furnace well pump sceptic etc... in the next five years.

., testing main components, general mechanicals condition, basic roof condition, any major red flags, etc.) for a lower cost.