I am interested in Non Performing Notes (NPN).

I want to avoid the competition from non investors as this it a desirable area. 

Charge an extra non-refundable deposit for pets.  

-Neighborhoods that are walkable/bikable or have great public transport (big ask for Cleveland) are very popular.

Who would buy a 10yr bond @ 2-3% when Zuckerburg just crushed 8% gains today in the midst of a publicity nightmare. 

If you have any additional non-owner occ assets you may be able to get a portfolio loan.

If you are heavy into non-performing that portfolio management % will go up.

It's not pretty to model a 150 basis point increase in cap rates but the returns remain better than idle cash and certainly better than what will happen in non-real estate asset classes if that happens. 

Utilities are generally public and you can call them to get averages, taxes are public as well and can be pulled either from a assessor website or at their office, insurance companies can give you cash value and replacement value quotes by giving them an address, general rule for running calculations for vacancy is 5-10% of gross income, I have seen maintenance expenses all over the map (anywhere from $300-750 or a % of the rent - those vary depending on the number of doors in the deal as well as how much deferred maintenance has to be dealt with or how much rehab you are going to do to negate the deferred maintenance), contracted services, call a few landscapers and get quotes and use those for your analysis. 

If property is investment, look for a non owner occupied private money, commercial loan.