And like @Dawn Anastasi pointed out the fact that it's a tiny house does not help either. 

I grew up in a firefighter household.

I want to put 2 tiny house on for seniors. 

Considering I like rent to be 4x the amount, that means the avg household income is not less then $50,000 a year for our tenants.  

What I'd like to do is just get rid of a tiny slope between my circular drive and front entrance so that water runs away from the house instead of towards it.

I looked at a 850sq ft 2 bed 1 bath with a tiny tiny yard in mar vista asking 750k.

Tiny homes are all the rage now, so someone wanting it to downsize isn't unfeasible. 

Get familiar with the way the market ebbs and flows, know the local players and make sure you become a household name for your niche if you decide to do this full time.It is my personal opinion that you should be able to figure out if a deal is worth calling the seller's agent after 45 seconds of spreadsheet work, not 13 pages.

And no roommate possible, its a tiny one bedroom.  

My thinking is for Household storeage . two of the places do offer a small outdoor storeage for Boats , RV's etc .not sure what those rates are I guess it depends on the size .