I scheduled a time to look into the home and when the time came we went to see it... kitchen had caught a fire and is in complete ruins, there is mold on the ceilings around the place, fire in kitchen went thru the roof and they placed a cardboard over it but from the inside you can still see outside, critters have come thru and torn up the place, the floorboards are all crumpled and lifted, garage is full of trash, the land hasn't been touched for any type of landscaping or lawn maintenace, inground pool is full of sea-like-weed but the biggest issue that I seen was when as soon as you go thru the backdoor into the home are stairs that lead to the basement.

We have an old house, 1937, with steep stairs that are uneven.

You need a 3/4" layer of plywood, followed by a layer of hardi-backer or cement board, before you thinset and tile a floor.Your subfloor ideally should be level, and at the very least, flat.Without meeting these conditions your tiles will crack.

You will need to make the entire property ADA compliant to get wheelchairs up stairs, to get wheelchairs through every doorway inside the house and you need bathrooms large enough so wheelchairs can get to the toilets and sinks..You need shower stalls large enough you can roll a wheelchair inside. 

The wording from the inspection is "1st floor spiral stair to basement must be removed.  1st floor can be duplexed with code compliant stair. 

I was already changing the railings and stairs on the deck so we ended up cutting 1/3 of the deck off to expose the gas meter.  

EG, let them go in the front door first, down the stairs to the basement first, or up the stairs to 2nd floor first.. with you behind them...  

I tore all of the flooring out, including tile in the kitchen and hardwood stairs.

Had to do some exterior cement work so rest of the exterior will be buttoned up in 2 weeks.

If your strategy is to use low down payment, owner-occupied, conventional loans to stair-step into owning multiple properties, just know that Private Mortgage Insurance (PMI) will likely be an added expense until you have 20% equity.