The fines will eat up at their profits.

Is this something worth pursuing?

Which on $7K upfront isn't bad, but if something goes wrong so does your profit.

Is San Bernadino County still profitable? 

Everyone has a different number on the amount of profit they are willing to accept. 

Sometimes if you pick a market first, it is easier to find who operates in that area.As part of your research, try looking at:How to Find the Right Turnkey Real Estate Investment Company for YouThe Best Types of Markets for Profitable Turnkey PropertiesandWhat to Ask When Working With a Turnkey Provider

I would probably take advantage of the hot market and take the profit to invest in higher cash flowing properties closer to your location

And lastly I have to add that we sold our previous home and made $60,000 profit and have $100,000 (or so) equity on our current home so we could say we do have a little bit of experience. 

Thats what i was curious on, i do plan on quitting w2 and flipping and developing new projects full time, but will profit from my rentals still be passive?

In my opinion, the transactional cost of buying and selling properties in Mexico (basically trading houses) might make it very challenging to make good profits if you are buying and selling as a foreigner.