Your property is fairly destruction proof, costs near nothing to maintain, yet you can charge above market rents.If your property is nicer (class B) where the carpet alone might be $6k or more to replace when the tenant spills hair dye everywhere, you won't be as happy as in the situation above.  

This is the percentage of costs (purchase and rehab) covered by the loan.

If you need 10 minimum and have to hold those non-paying tenants until you get 10, what does that cost you in your financial model?

Yes, you personally aren't living there, but with high crime comes unqualified tenants and high maintenance costs (stolen materials, broken windows, etc.).

15 year fixed mortgages are very underrated a 200bps spread is enticing as well as lower transaction costs.  

Marketing, screening, collecting rent, unpaid rent, maintenance, capex, insurance, lawn care, vacancies, turnover costs, inspections, and so much more. 

These are still unresolved and are a cost to the owner. 5.

It cost us more money than we would have liked to have spent, but we were able to put a house on the market that we were proud of.

If I invested 100K today, they are currently providing anywhere from 60 to 72% passive tax deductions due to cost segregation, depreciation, etc. 

If you don't, it can cost you everything!