One of his renters had cut a pipe because he was trying to install an outdoor faucet to the existing water line.

The reason I am asking is because I heard of many investors local and in different states, who open LLCs when they acquire a new property, but I don't know if it's a new LLC or they acquire under an existing LLC.What is the benefit / purpose of having an investment property under an LLC? 

We’re analyzing properties right now with the idea of some immediate capital growth (fix/flip)(BRRRR), and long term looking at value add plays on existing structure or ground up on infill lots we can either buy or become land partners with the owners on.My focus is building, design, buy/sell, project management.  

I’m sure it exists, just rare.

Your explanation does not come across as unreasonable, I just think it's impossible for people on this forum to be able to respond in the detail required because we don't know all of the facts and figures that exist on the agent's side.

All the other problems existed prior and he is just charging me to renovate the unit for his next tenant.

Either a probation condition or an existing no contact order.   

Things like sanding and painting doors, installing said doors, tile backsplash, general clean up, etc etc etc.

Can I use any old title company to lookup any existing liens?

Another vote for booking it if it's an existing STR.