When that comes how do real estate investors weather the storm and not wind up declaring bankruptcy?

If the police, fire, and lighting get upgraded once all that debt is gone after bankruptcy, then the value of the homes will increase.  

Do you know if the borrower filed bankruptcy?

This isn't meant to come across as mean; just that there's people on here with 30, 50, even 100 SFR's ALWAYS factor 10% for vacancies, evictions, nonpayment.Can your tenants lose their jobs in December & your left with no tenants for 3 months (it's very difficult to compete with Santa these months & if you can find a tenant then, they're probably high risk); can a tenant declare bankruptcy during their tenancy & stay in there & it takes months to get them out?

We also checked that all 4 adults have no evictions, criminal history, or bankruptcy....

Tenant has to be in a year, on time, no bankruptcy, no evictions last 5 years, financials, etc.

I am not aware of any waiting period in between FHA loans, UNLESS you have a delinquent situation like a bankruptcy or foreclosure.In fact, FHA will even allow you to carry multiple FHA loans under certain circumstances like a growing family, a relocation, or co-signing for a family member. 

(What are your KPI's or key performance indicators)5) What happens if one of you dies, is disabled, has to declare bankruptcy, commits a felony, gets married?

I have found a property through Bigger Pockets that is owned by someone who has filed for bankruptcy (at the end of August).

If they have the money to put down, if they have a job that will support the payment under good lending guideline Ratios,  (I used to be a loan officer and that is how I was trained), and If they don't have *unpaid* child support, if they aren't *delinquent* on student loans, if they aren't currently in a bankruptcy, if they aren't currently in a divorce, if they aren't currently in a lawsuit, etc.