Look Your bedroom is the most personal and coveted room in the house that you don’t allow even family to go into and you broke that trust by doing it anyway after you said you wouldn’t .

You could also buy a SFH and build an accessory unit and get some pretty nice cash flow.

@Ben S.Sounds like a great idea to take back the parking and go for both the parking space and convert the garage into an ADU Accessory Dwelling Unit for that extra income.  

The home is a 2 bed 1 bath, 1144 sq. ft. rancher with accessory dwelling unit of about 900 sq. ft.

(Accessory dwelling units), and some specifically don't allow renting them for profit.Search for "accessory building" also.

CA enacted the Accessory Dwelling Unit law that says any SFR can have a 1200sq/ft building as an ADU, and I called the Assesors office and he said I could most likely get one of the buildings coded as an ADU BUT that may require ripping out the 2nd kitchen in the 'main house', which is a deal breaker.

@Chris Paez I'm not sure if an accessory unit would qualify for a 2-unit property. 

I have a house in san jose downtown zoned R18 (Single family house with a ADU(Accessory Dwelling Unit) - In law unit.

I ended up getting it approved rezoned and permitted to convert it into an accessory dwelling unit. once its inspected and passes i can legally rent it out

It would be required to be zoned for a duplex or to allow for an Accessory Dwelling Unit (ADU).