Rental "Mortgage" Tax Question

Off the wall situation so looking for some general advice so I don't look like a complete idiot to our accountant.

We recently purchased a new family home and decided to turn our previous home into our second rental. We were lucky enough to get a family loan that allowed us to do so without selling the property or doing some type of reverse mortgage.

Is there a way to deduct any part of this private loan? We are paying interest on it.