Familiarize yourself with how the return was prepared, what items were put on what form.  

When I face applicants with items in collection, I tell them they can pay those collections off, get them into repayment plans, or pay me a security deposit equal to what they owe their creditors.

Any contractor worth their salt won't hesitate to submit a detailed line item bid on any work that needs to be done.

This also assumes no property management inclusion -- even if you are managing the property yourself you should include something for that line item.

But I really don't think they will admit anything to them or care about what Home Advisor has to say, reason being they have only 2k to loose if they do nothing, but lots of costs associated with paying for my damaged items and fixing their work. 

Based on some of the items left behind, I'm guess a contractor was housing his laborers? 

The water bills are ridiculous; the city fines for everything and getting the tenants to pay for things that are outside the rent (even if it's stated in the lease) is a challenge and you cannot add these items to a Failure to Pay rent notice.

I have a property that needs a total rehab and some small items on other properties that a handyman would be able to fix.

The problem is many people get access to money and they spend it on consumer items that go down in value over time.  

You can also set out key word alerts to tell you of items or locations of interest, like "buy and hold", or "San Francisco".