Advice for starting out with lots of equity

[Sean Manrique]

Hello, my wife and I are looking to get into real estate investing. I live in the bay area California. I bought a house for 280K in 2012 and it would now appraise for somewhere in the range of 730-780K. This is based off of much less upgraded houses recently sold in my neighborhood.The remaining balance on loan is 230K

I do not know if doing a cash out refinance would make my monthly payments and property taxes much higher to gain access to the money or if using a HELOC would be a good way to go or even if there is a way to pay off the loan with the equity. I want to get started out right and make a wise decision on what to do with this equity.

Professionals- suggestions?