I know I will have to file partnership taxes, that's okay, but why UBIT if I don't engage in unrelated activities? 

It was made clear that you MUST be engaged in the appraisal process from the very beginning to avoid problematic results at the finish line.

@Helen M LeyzerovichWhile I am not actively engaged in the area, I do have access to data, which corroborates @Joshua Braskett 's firsthand information.Home values have fallen in the Stuyvesant-Prospect neighborhood and so has the population. 

Before engaging with a lawyer I suggest contacting your state's Insruance Commissioner - businesses are always responsive to the regulators that allow them to operate.

Here's a link to the SF rental ordinance I'm referring to: https://sfrb.org/topic-no-154-limits-rent-charged-master-tenantsMaybe my interpretation of the law is incorrect but I would recommend people, especially in the SF Bay Area, be very cautious and know your rental laws thoroughly before engaging in any non-owner househacking venture.

I recently joined Brew City REI on Facebook, I try to make it a habit of engaging daily.

I do not want to engage this group of idiots.Plain and simple, sellers need to pay this damage caused.

Since the large majority of attorneys you will find willing to do that might do 1-8 IRA LLC's per year, don't count on them being engaged or well versed in these areas.  

@Andre JerniganWhat I don’t quite understand is why an experienced investor with sufficient cash available and serious about purchasing an apartment complex would engage the services of a relative newbie, who lacks contacts, experience, knowledge and deal flow when they can engage the services of a commercial real estate broker who has all the above and a network of hundreds of agents to act as their representative?

Once you are ready to actually start investing, the first step is to engage a lender and an agent in your area.