I don't know if the city can sustain a blow like that with how fragile it currently is.

All you need to know is that the Fed's target rate is vastly important to the global financial system, and it has far-reaching effects on all manner of interest rates.

What is the best strategy and is buying for just cash flow a good idea and will it sustain a bad market?

I'm afraid you have seen only the tip of the iceberg regarding damages, especially since the place is full of their stuff.Not addressing issues as they arise, not serving appropriate notices for lease violations in a timely manner, not charging for damages as you discover them..... you are in a world of hurt.... and I feel for you.

Some others will, but we feel there is enough complication and risk that the perceived simplicity and cost savings is not realized.It is arguable that even if you added capital in the same proportions as the initial funding, this is still a transaction between the IRA and a disqualified party (the LLC that - once formed - has equity and control interests of the other, disqualified IRA).To fund the LLC in a disproportionate manner would much more clearly create issues.  

Because you are related, express in a polite manner that you want to purchase it as an investment therefore you must buy it under market.

My state has laws that make owner responsible for keeping the home habitable and making sure maintenance/repairs are handled in a timely manner.

Find lenders who are respectful, can explain their terms and associated criteria to you simply, and in a manner you can understand to evaluate properties on your own. 

My contact info was included in a disposition letter that was sent to them stating they owed thousands of dollars due to unpaid rent and damaged sustained to the property.I am concerned they might retaliate because these tenants were recently evicted from my property.

Vision and MissionA) The mission of Universal Son Enterprises, LLC is to create partnerships with investors that result in successful business ventures involving bulk single family residential, multifamily and commercial portfolios to create long-term sustainable value through strategic asset growth, increased profitability and the addition of value added opportunities.