30 year Refi or line of credit ?

[Jason Eberhardt]

Hey BP, so i have a rental property that i am going to leverage so i have the cash to buy another one at some point, as soon as that good deal comes up. 

My question is this. what loan is best, a line of credit or a 30 year mortgage ? i have done this is the best using 30 years, but now i have been reading so much on BP, i would like to look at all my options. 

Can anyone tell me more about the line of credit ? i know a little more about the 30 year loan, like 70% LTV and the whole closing cost % and the terms. any helps would be great thank you.

Jason.