Keep 3.375% 17yr mortgage rate or tap $300k in equity for RE investing?

[Erik Johnson]

Hi,

I am living in my primary residence which was a house hack we used for a while with a mother in law suite. We've refinanced the home and got down to a 3.375% interest rate for 20 years (3 years ago). I want to get into Real Estate Investing and we have the funds to move into a nicer neighborhood for our young kids and keep this one without selling our current residence. There is the potential for appreciate as the area has gotten much nicer and a large hospital is getting built less than 5 miles away. We love the area, but need something a little bigger. This home has roughly $300+ in equity in it, should we be moving on from this home and buying more smaller properties to maximize our portfolio performance.. I worry about giving up this interest rate...

Any thoughts or considerations would be helpful.

Thanks!