Would I deduct the cost to replace each damaged window in its entirety, or provide receipt and take a smaller amount off as it isn’t as off the window glass was cracked or shattered? 

I could barely proof it because it was so long haha

It's also not fool proof, but is a good start to get a feeing for different areas 

I also do not look at real estate as a silver bullet but more so as the foundation for my portfolio.

We (developer and all of us as consultants) were sued over this PE three years later, which I mostly believe is because they realized they had no 'proof' of the PE beyond the fact that we had shot holes in their AP until they acquiesced to PE.

Feel free to browse my old cringe posts as proof lol.

If they have no assets or if you don't have verifiable proof a lawsuit is worthless.

They may not be able to use financing contingencies and may have to show proof of funds equal to the acquisition price but the money that hits the sellers bank account is the same whether its "cash" or a financed transaction. 

We refunded his 200 dollar pet deposit (Illinois has put ESAs on par with working animals, so we had to refund it), although he says we did not (we do have proof of this).   

Lower income tenants tend to live rough in properties.There is another topic from years ago on bullet proofing rentals for low income tenants that had some good nuggets in there to try.Not my cup of tea but hope it does amazing for you.