HELOC ON HOME NEITHER PRIMARY RESIDENCES OR INVESTMENT

[Laureano Perez]

I'm currently in the Military and planning on retiring in about 6 years. I recently purchased my mother in-laws house due to her having financial issues. She will be living there rent free (I know I'm a nice guy). I do not plan on living there but, my wife and I do occasionally stay there when we are in the area. My question is will I be able to get a HELOC against the house to purchase an investment property even though it's not my primary residences or a rental property? I currently live on base (Government Qtrs) and do not own any other properties.