The purchase price vs rental income is very healthy (assuming occupancy and collections are there).

I inquired about the possibility of a two-company structure: A traditional LLC that is the public face of the activities (collecting rents, paying contractors, etc.) and managing the Series LLC with each property in once cell in it (in this case, Series LLC is serving as a holding role).Again, one attorney said that would be much better than a standalone LLC and that is recommended approach, and the other said it is waste of time and money since there are some requirements from Texas Real Estate Commission, which is requiring being a licensed broker in the state to operate in the managing LLC.So, just want to hear what other Texas investors are doing when it comes to series LLCs regarding these issues. 

He could get hit with a significant expense and not have the funds to pay for it because he hasn't collected enough rent income.

There are other towns with much less city intervention and will have much higher chances of collecting higher rents. 

If you were entitled to those lawyer's costs your lawyer would have asked for them in the lawsuit because a judgement gives you the most ability to potentially collect that money back from the tenant. 

Also, focus on 2 years of job/income stability.Class D Properties:Cashflow vs Appreciation: Typically, all cashflow with little, maybe even negative, relative rent & value appreciationVacancy Est: 20%+ should be used to cover nonpayment, evictions & damages.Tenant Pool: majority will have FICO scores under 560 (almost 30% probability of default), little to no good tradelines, lots of collections & chargeoffs, recent evictions.

One must have ultimate faith in the sponsor that is critical ..

The only thing a tenant does it prove the rent you can collect as opposed to a proforma of suggested rent.

I have been deliberately managing it as a rental (ie, contract, collecting rent, etc.). 

While collecting payments for buyer for 30 yr's.