They can say you failed to make a repair and wish to withhold ent to get previous rent returned. . 

Regardless, make sure you have appropriate reserves built in so at the very least your future vacancies, repairs, and capital expenditures are covered right away.While the cash on cash method does not take into account amortization or appreciation, I think it's the best way to measure a property's profile tangibly in the near-term.

Generally - the depreciation on the structure, mortgage interest, property taxes, repairs & maintenance, insurance, property manager, utilities, vehicle expenses (mileage), professional fees (reports/CPA), home office (office supplies, percentage of utilities, continuing education).

I was very pleasantly surprised.I also built a tool myself, I had a lot of issues finding service person for different repairs need.

As I have not set foot in that house nor tried to make any action to live and repair the property per adverse possession.

Needs gutters, full kitchen and bath, floors, paint with some drywall repair, windows, front porch and the deck on the rear is pretty poor as well.

We now live in Arizona and I frequently fly back to the southeast to repair or inspect the properties and already deduct the travel, lodging, and half of the meal expenses from my taxes. 

.- Build Relationships with Vendors: Getting quotes from local contractors or vendors for common maintenance or repair tasks can give you a clearer picture of recurring costs.

Maybe 20% is too rich and it's cheaper but I've never shopped property managers.Estimating an additional 10% for vacancies and 15% repairs.Fixed expenses + PM + 25% for vacancies/repairs = $37,996, or $404 left over.Now I'm torn because I could put estimated proceeds ($200K or so) in a fixed income investment and earn that today without doing anything.BUT, it is nice to have the US address as I go international, and if I wanted to come back I'd have a property.

Quote from @Laura Higgs: The Roi combined for 3 duplexes after repair will have an ROI of 4.47.