As such, the only "deals" typically require extensive renovation, because anything that is purely surface level retail buyers will likely outbid you.  

Is the membrane secured to the parapet wall correctly?

They were popular because they were cheap, since your walls were also your roof.

It demanded to replace full flooring, scrape walls and repaint costing entire year worth of rent from that unit.Question: are there technical solutions inexpensive to remove cat urine instead of replacing all wood , carpet and walls?

On the surface, this sounds like a sketchy idea.

In PA, basement habitation is not allowed if any basement wall is below grade or if the basement exit door to the outside is below grade (PA 6400.81).

I would have to replumb, run new electic, studs for walls, build a fire escape and so on.

Even if not, the writing is on the wall for more regulations for everyone, if they approve these.https://www.coasttv.com/news/ocean-city-council-to-discuss-r...https://www.oceancitytoday.com/news/ocean_city/ocean-city-co...

Two complete interior remodels, new retaining wall.

Instead of ceramic tile on the shower walls, I had left over cement board siding from a previous job..