These are large once-expensive homes that are now rotting on parcels of land that nobody wants.

How do you know there isn't an unreported water leak rotting out the floors?

Quote from @Ryan White: Its listed for $29k but going to offer 10k.it needs a complete rebuild, floors are gone, including the joists all rot under the walls, termites damage up the wall framing on one end that i can see, roof as well needs replaced. the flooring is the main thing im worried about, like do you have to take down the whole frame of the house to replace all the joists? 

-inspected crawl space -replaced wood deck rail that was rotted and re-painted deck (last painted 3 years ago)-soaked shower heads in CLR-added fresh sand in paver patio-changed home air filter and left new renters with 3 new filtersAnything else you do regularly to your rental properties??

But I would definitely get it removed asap because you said it was rotting and looks like it’s going to fall over.

But if you go to the guy down the road with the rotting Pinto in his driveway, he'll jump at the offer.

The agent said they won't be looking for a lot of concessions apart from the roof, but they noticed some wood rot on one window sill.

The houses I bought would still be empty and rotting, the truck would not have been bought, the new roofs would not have been put on, etc.

Inspect for any rot or damage periodically, and replace or repair sections as needed to maintain its condition.Potential Upgrades / Considerations:Security:Enhance security with robust locks, a video doorbell, and exterior lighting.

Any rot or water leakage in the basement or 1st floor?