The flooring can wait, unless its carpet that is stained and tore up.

Here’s the kicker…she claims her and her kids have been battling Covid back to back for the past month and she went to deep clean and noticed the water stains on the floor.

It won't stain as easily, but will char above 150F if someone sets a hot frying pan down on it.Agree with others. 

He could not determine the cause of the water but saw stains on the blocks. 

I would imagine that they will sand the floor and blend it in with stain,.This issue is the most concerning , the other big ticket item is the missing vapor retarder in the crawlspace under the house.

Most of the glass ones get scratched/stained.

Make ready of the property included minor landscaping improvement, fence staining, pressure wash of property, deep clean of interior, upgrade filtering of HVAC return ducts.

On the flip side, I don't want to buy a glass top stove and then spend hundreds of dollars repairing damages from tenants or dealing with it looking disgusting on move out because they didn't clean it properly and now it's stained. 

I prefer dark grouts and small grout lines on floors because of staining and dirt, but good non-slip tile in a bathroom is fantastic compared to anything else. 

Stained upholstery, water rings on tables, and otherwise damaged furniture needs to be addressed or you will miss out on the best quality prospects.