Food in fridge is from April this year and it basically looks like someone was half way through moving out and then something happened and so a bunch of stuff is still in house. specifically one room filled with about 10 burner phones, 3 tvs, personal clothes, mail, kids personal items and bunch of random stuff new with tags, etc etc. he also had pets which was against lease term. one of the rooms was used as a pet room completely destroying carpet and staining walls with urine etc. 

I made myself take QB classes and struggled for years, my CPA said what I am doing is about 80% correct and it was a ton of work to clean up the files. 80% is not acceptable for me when it comes to IRS stuff.

You can file a Chapter 13 which will protect your home and its a clean way out.When you file a CH.13 BK its not the end of the world it simply protects your home since its your homestead from foreclosure.

I thought about buying a non developed lot in cash, subdividing it, clean it (take out trees and bushes), get permits, and start building 1 property sell it and then build the second one...The problem is that I am afraid of going this route because of messing with sewer, water, electricity...

Also, operating expenses like cleaning, or purchasing sheets, and towels are much cheaper.

. - Finding a Good Team: Since there is a language barrier in place it was much harder to communicate with any cleaning companies/property managers we found. 

With some cleaning up and small renovation you can get up to $2000 per unit.

Vacationers are starting to go back to hotels as Airbnb fees have increased and they don't want to deal with cleaning dishes on top of paying cleaning fees.We stayed in a nice vacation rental on the Oregon Coast and there was evidence that kids or homeless were hanging about when it was vacant.  

Maybe add into your lease that the carpet needs to be steam cleaned when they move out (they need to provide a receipt for the rental of the machine or from the cleaning service). 

If it persists, I would hire someone to clean it up and bill the tenant back.