Need a little direction - paying back family for house

[Ryan Carmichael]

New to the forum and in need of a little direction.

Background: During my education, my parents bought a house for me to live in...paid in cash.  Now that I am out of school I am in the process of purchasing the property from them with monthly payments.  Up to this point I still owe approximately 1/2 of the value of the property back to my parents.  

I would like to hang on to the property as a rental in the long term and then eventually add to a real estate profile beyond that.  I plan on moving in the next year or so and would like to just go ahead and pay the remaining balance I owe my parents via some sort of loan, especially now that interest rates are low.

My main question:

- what is the best way to pay off the balance to my parents? Home equity loan, cash out refinance, other options?

Thanks