And who authorized the property management to negotiate rent on a house that is not under contract with them? 

Have you report this to the authorities and provided copies of the document and correspondence?

@Ned Carey Re-read the title of that article and tell me whether you think the author is biased.Here's another take on it: https://sf.curbed.com/2017/12/1/16721714/presidio-...

Our listing agreements actually has a section where the seller decides whether we can tell other agents if there are other offers or if that is private information.I always have my sellers give me the authority to disclose whether there are other offers or not.  

.- Authority of Members.

Despite knowing this, the housing authority still won’t do anything.

The permit itself is authorization from the city to do the work.

They're four young adults who seem to be splitting the rent equally, but on the lease, three of them are tenants and one is under the "People authorized to occupy this premises" section.

The author argues that those who sell real estate could be adversely affected because they’re eliminating or capping most deductions like property taxes and interest.

I also understand that when the courts do not have the ability to appoint anyone as a PR, they then appoint a Special Administrator who typically has the authority to sell any real estate owned by the decedent - this is making me think I should be mailing to these people as well (assuming they don't appear to be a spouse).