Notably, there is often an unfortunate cycle where: (1) current ownership has financial struggles; (2) this requires the current ownership to fire sell or declare bankruptcy; (3) the development suffers as a result; (4) new ownership comes in and tries to fix it; and (5) the cycle repeats.

Keep all the money you collected from the previous year for emergency only and repeat the process. 

Interest rates are in the 6's right now so that heavily affects any new calculations for DSCR than when you bought the property.A hope would be that as your loan comes do and gets closer hopefully interest rates fall some making potential extra payment less required from lender.  

-repeat the process every year by acquiring one house every year with the appropriate income qualification

The folks who are placing families affected by a need for an insurance claim have an "inbox" that is overflowing.

We have found what works and repeat it as much as funds allow.

If the husband defaults on the loan, it could affect the household's financial situation, potentially leading to missed payments on other obligations or a decrease in property value, which might influence her credit indirectly.3.

I just recently started building business credit though so I can learn more about credit stacking but at the same time do it in my business name so it does not affect my personal credit.

If something happens to affect the cost you might be able to change the scope of work or timeline to compensate for that.   

It will definitely affect the amount of time you can devote to your business, but all the more reason why to keep going.