The current investment property loan or mortgage rates fluctuate and would depend upon several factors.
The interest rates and the minimum down payment required for Investment property loans would depend upon your income (credit) and the total debt that you currently have.
One more thing, investment property loan interest rates are usually higher than conventional or owner occupied properties.
The investment property mortgage rates change frequently and it is advised to speak to an expert who deals in rolling out investment property loans day in and out.