The property and both units has significant physical distress.

I do have a bad habit of saying less with more instead of more with less - sorry.Yes, the reason I won't allow pets is because of the tenant and how I don't trust them to a) take care of the pet and b) pay me for damages and c) not create damage that can not be undone feasibly by either party, landlord or tenant (cat pee)I also don't want the hassle of enforcement.

Precious metals have more of a track record of course but the decoupling of the paper price and the physical prices blindsided a lot of metals enthusiasts. 

For starters, where is your property physically located (city and zip code)?

A seller, whether a builder or individual, can sue you for one of two things....either specific performance to fulfill your contract terms, or for damages for the delta between your contract price and the eventual sales price plus other associated damages. 

Of course I know it’s there, the inspector wasn’t worried and advised me to clean it with bleach as it was dry, so it must have been from some older, but since fixed water damage from the 2nd floor unit.

I am a travel Physical Therapist Assistant by trade and make great money BUT i get paid way more in my check “PER DIEM” than hourly pay because it is tax free.

They know what materials are available, what physical forms most efficiently accomplish the goals, how ordinances are setup and how they interplay to maximize the project goals. 

At the very least, you need builder's risk, fire, and liability coverage.What's your plan if someone slips and falls on the site, or if someone breaks in and damages/takes materials or tools, etc? 

They've actually been great about paying me out for damages, extra cleanings, etc. as well.