Leaving CA. Hold my primary or sell and reinvest?

[Adam K.]

Orange County, CA ( La Habra) 
On my current residence, owe approx $335k + $135k HELOC (down payments for out of state rentals). Home worth $825k give or take. Mortgage at 3.125% and a payment incl. taxes and insurance around $2,200, could rent for ~$3,500.

Currently the out of state rentals cash flow a total of $400-500/mo including covering the HELOC, the HELOC payment is $750, which would be paid off with sale. It's locked at 4.75%

I’m aware of the capital gains exemption to be realized by selling within 3 years of moving which is what has me leaning towards selling.

It's amazing that a $10k FHA down payment in 2010, has ultimately led to the above situation.