As an aside, the RSA (Rent Stabilization Association) which represents over 25,000 landlords in NYC has recently commenced a lawsuit against the city for violating property owner's constitutional rights of owning property.

Therefore if I either decided to sell or rent, there would be the possibility of buyer/renter future complaints, maybe even a lawsuit. 

It's not quite as much about anonymity as isolating each property and account to limit your liability in the event of a lawsuit.

But it does seem like an issue that a plaintiff's lawyer would try to use to penetrate the various series entities in a lawsuit.  

I am currently putting an in-law suite addition on the house and using a home equity loan to do the reno; my question is should I pull out an additional 36k from our equity to repay the 401k? 

The only other options you have, depending on your local laws and Governing Documents of your HOA are mediation or arbitration, both of which are much less costly than a lawsuit.

One out of three landlords in a lawsuit every single year for violating the fair housing discrimination eviction or property code law.

If someone is getting ready to sue that company and you buy the company, the law suit would be against what is now your company.

Permits , pay offs , site work , environmental studies , lawsuits from NIMBY .  

Once you personally get involved, you will find yourself with little or no protection from the entity when the lawsuits get filed.A good liability insurance strategy is your ultimate fallback.