My ideal world is to find a property with a house or mobile home to live in that I can also build a 2-plex to 4-plex on.

You'll typically ask for it when you're requesting permits to modify your home to have the JADU.You can "sub meter" the water instead of installing an actual water meter.

Given that many people have said the average price to build in California is $200 and above per square foot, I became worried.Do you think building a 2-bedroom, 1-bathroom home measuring 550 sqft is feasible at this cost?

BE CAREFUL!

If so, then I agree with @Caroline Gerardo that you need to be careful.

My family is located in MLB, and just purchased a second home there (south of the airport).

In our Guide, one of the sections concerns starting up your own business and working from home. 

@Alecia Loveless thanks for the tip!

They tried to clean it, unless you left specific instructions on the care I think its normal for people to make a minor error like that cleaning. 

I had a group of 3 women veterans that wanted to do this out in Santa Rosa, CA, but their relationship actually fell apart during the home search and they abandoned the idea of getting a place altogether!