If the numbers make sense and won't prevent you from buying your own home in a few years, then go for it.  

A while ago, there was an agent who prevented me from buying a crappy deal.

That's a lot of potential future guests.Also, there are a LOT of potential owners waiting to buy a STR as the market softens a little that will swoop in & buy & prevent a crash.

I am thinking about updating my lease to prevent tenants from displaying Democratic Posters of any one running for elected office that champions ideas such as Rent Control, Gun Control or other anti-landlord ideologies.

This is preventing a real estate agent from listing the property which they have a buyer lined up for $480K. 

A lot of mistakes can be made if you do not talk to the right people and use preventive maintenance to avoid problems.Multifamily rentals are a great way to use the more doors more cash flow method.

Secure the property, transfer utilities to prevent any freeze damage and then file an FED action.  

On the other hand, having a full-time W2 job will prevent you from qualifying for REPS.

Census Bureau, helps maintain property values by preventing market oversaturation – a crucial factor that differentiates today's market from those of the past.3.

I think that dual representation should be eliminated nationwide to prevent listing agents from dominating this business and pushing out great buyer agents.