Need help moving beyond my first property

[Vinny Incognoli]

Hope all is well. I own one rental property and am looking to purchase another. I refinanced the property around five years ago to help with the down payment for my primary residence. The current condo I own is non-warrantable which eliminates utilizing traditional loans. What would be the best approach to purchase another rental property? Do I refi my condo again? 
Take a line of credit on my primary home and buy a property outright? Thank you for your time, efforts and advice.