Can try to reposition to Class B, but neighborhood may impede these efforts.Vacancy Est: Historically 10%, but 15-20% should be used to also cover tenant nonpayment, eviction costs & damages.Tenant Pool: majority will have FICO scores of 560-620 (approaching 22% probability of default), many blemishes, but should have no evictions in last 2 years.

The HML covered 100% of the $32,500 rehab budget through drawbacks.Refinance: Post-rehab, I refinanced into a primary mortgage, creating 25.5% equity in the property.Future Financing: I plan to leverage the property with a HELOC to access up to $86,000 in capital for future deals.

I would focus on saving enough money that if I had a deal go bad, then that money I saved was there to cover it. 

Can try to reposition to Class B, but neighborhood may impede these efforts.Vacancy Est: Historically 10%, but 15-20% should be used to also cover tenant nonpayment, eviction costs & damages.Tenant Pool: majority will have FICO scores of 560-620 (approaching 22% probability of default), many blemishes, but should have no evictions in last 2 years.

It usually doesn't cover for full replacement of your property.

Before buying or renting in an unfamiliar neighborhood, you should check the following two sites: SpotCrime, AreaVibes,These sites provide valuable information, including Livability Scores, which cover aspects such as crime rates, employment, health, housing, schools, shopping, and more.well, anything can happen anywhere.

I've not covered everything but just given you a start. 

Based on speaking with them their, I paid a rather hefty fee to transfer my solo 401K to them and have it reinstated and the fee covered this plan for 6 years. 

While real estate values do rise over time, if you can't cover your bills during the downturns to get you into better times to sell, you are likely to lose money.  

@Anthony Miller here's something to think about that's not covered in any books!