My guess is that the buyers will much more appreciate the fact that they're buying a house with windows that don't leak cold air, etc.

@Avery Carl Do you echo Chuck's point that once the new homes come online, we will have more choices and price/inventory pressure will be reduced?

If you don't want to convert the house to forced air heating there is a wonderful option for cooling a house this old: ductless air-conditioning.That's all I can think of at the moment.

It will only add increased pressure and could really hurt in the end.

Bleach does not kill mold and you could release the spores into the air.

I needed to fix air packet leak in copper piping. the whole drywall was moldy. so I replaced that and started painting. until I know what they want me to do I only paint.

For instance, if the property has a significant amount of 'deferred maintenance', you know, broken windows, worn roof, or a missing central air unit, it won't be eligible for conventional financing.... that just means you'll have a hard time getting a loan for it.  

Any of the "dust" in the air from spraying the walls will generally dry before hitting the ground, and can just be vacuumed up.

I'm shocked that the pressure washing didn't do it.There is a product in a black bottle, with yellow writing, that is a paint removing gel.

@Leah DexterDo a ton of research through VRBO, Air BnB etc.