The problem I have seen with many unpermitted units or additions particularly in Altadena CA : is that what looks nice, well done and safe many times is not... 

It's always a tough call on whether to just do a day trip or pay for a rental as the costs of a nice rental can add up quickly.The TL/DR (which I'll expand on) is that we ended up changing to a strategy of letting others help pay for a cabin that we know we'll love.

It'd certainly be nice to keep all your cash on hand for property rehab to make the BRRRR work.

You can see our Kukulkan project, here: Tulum, Kukulkan “The Art of Living, together” project introduction videoI was in Tulum for a second research visit and to meet my partner in february this year (2019).

With mobile homes, purchasing at a price where the numbers make sense will get you a nice profit.

Quote from @Ella Volney: Nice!

Guest Policy.  5 people is bad enough, now imagine all 5 trying to bring over their boyfriends/girlfriends for overnight visits or move in with them. 

Though the property and surrounding areas look nice in the pictures, the doors and windows has bars which concern me.I am just starting our my RE investment journey and all help is greatly appreciated.

For a nice possibly furnished STR, you are looking at between $250,000 to $350,000 depending on your budget. 

I see you mentioned the BRRR method, here's a nice breakdown of it here on Bigger Pockets.