Is cash out interest deductible

[Edgar Z Whelan]

I have various investment properties that I bought cash back in 2008-2009. These properties have increase a lot in value. I am thinking of getting loans and pulling out equity. Will the mortgage interest be deductible ?? I am not going to use the money to improve the properties.  Likely will just put the proceeds in a saving account and wait for a good property investment. Not getting a Heloc loan. Since I don't show much income on tax returns likely will use a lender such as Lending One or Visio lending. 

So I have two questions;

Is the mortgage loan interest deductible ?

And does anyone one has any experience with Lending One or Visio Lending ? Any other lender recommendations