A “prequalification Letter” is garbage. ......no tax returns, W-2, pay stubs, bank account info required. 

Health department inspectors found that the property was overgrown with weeds and there are rodents inside the property, including garbage in the rear yard.

I've spent thousands in the past, most of which was garbage.  

Mostly garbage.

@Addie Burchell first off, your starting with a fundamentally flawed framework, so as they say GIGO (Garbage-in, garbage-out), as in you will never get a correct output answer as long as input framework is flawed as it is here. 

The owner of the building pays for garbage and water.

There is a Triplex in California that I'm looking at, and I was hoping that I could get some opinions on this property and whether I'm actually doing this right or not.Unit 1 Rent $1100Unit 2 Rent $855Unit 3 Rent $850Gross Rent $2805/monthExpenses   CapEx 10% = $280.5   Vacancy 5% = $140.25   Repair 5% = $140.25   Water & Sewer = $80   Property Taxes = $389   Insurance = $100   Garbage = $21   Landscaping = $50   Property Manager 10% = $280.5Total Operating Expense = $1481.5Principal and Interest = $1292 with 25% downTotal Expenses = $2773.5Down Payment 25% = $86,250Closing Cost = $10,600Repairs = $2000Cash Invested = $98,850Cash Flow = $2805 - $2773.5 = $31.5Cash on Cash Return = ($31.5*12)/$98,850 *100 = 0.38%The only expenses that I'm certain of is the gross rent because the triplex is fully occupied and the principal and interest of $1292, which a lender quoted me.

He was looking at someone heaving garbage out of his car into the parking lot and starting to drive away.I walked over to his window and in a very stern voice asked him what the hell he thought he was doing.

I have a tenant who I believe to be on some type of heavy drug like herion, or meth ...I recently inspected the property it was full of garbage everywhere some hording, it's just trashed. 

I also noticed hypodermic needles on a desk along with an immense amount of garbage spread throughout the house.