I would also check the state of the electrical wiring. 

How do I make sure the water and electric bill are all in their names?

Once you’ve read enough T12s and understand avg expenses per door whatever market you’re in, you will better understand your proforma and how the property would operate You can simply take out the perceived capex line items, then categorize as Capex/Major Repairs (roof replacement or repair, re-plumbing, repave parking lots, ac, electrical, interior & exterior Reno) Expenses (taxes, insurance, service contracts, management, utilities- wst, turnover, legal, maintenance, G&A, payroll) Now take the income minus expenses.

All large cap ex items have been replaced (plumbing, electric, roof, A/C, windows, appliances).

Check with your municipal office to see if you can put up a electric cattle fence.

Did a medium rehab to both of the units which included work on the bathrooms, kitchens, electrical, plumbing, flooring, paint, hvac, etc.

Nor does it look like you have accounted for the electrical.

I've been quite conservative in running my numbers with a max rent of 800/800/500 (I would live in the 4th unit), but median rents are 1,100 where I live and this is in a really good walkable location.The electrical is rough (knob and tube) and although I plan to bring it up to code I don't plan to rip into the walls until I have a few years of income to do some remodels.

There's sure to be house electric for exterior/hallway lights and most MFR owners pay water/sewer (though not always).

Balance: $76,5006.5% interest, includes PMIBalloon payment at the end of 2 years:$74,000If 10 year fixed: $869 a monthIf 15 year fixed: $660 a monthIf 20 year fixed: $570 a monthIf 25 year fixed: $517 a monthIf 30 year fixed: $484 a month$600 average for homeowner's insurance, property taxes, gas, electric, water, sewer, garbage pickup, basic cable TV, digital phone, and Internet.1 bedroom rented for $450 a month.