What are some "deal-breakers" for you when purchasing an MFR?

[Daigo Kurosaki]

Amateur investor here that will hopefully soon be buying my first MFR. I live in Los Angeles and have been quietly searching for the past month or two, and I think I'm starting to find a few that I like.

I wanted to ask though, to the more experienced MFR owners out there.... what are some absolute deal-breakers for you when purchasing an MFR?

Like for example... I can't purchase anything under Rent Control (not experienced enough or ready for potential headaches). 

What about you?