@Christopher Sellar
We have similar stories. I'm 34, active military, and have a large family. That said, you can use this strategy and have success. It would help if you defined what your success looks like in the 20-year mark. For example, at 20 years am striving to have $10,000 a month of passive cash flow, net worth north of 1M, and 10-12 SFH's. Look at the BiggerPockets podcast talking about the book Vivid Vision; sorry don't know of the top of my head. After reading it, set down and come up with your retirement goals, then backward plan from there. If you want 4 to 6 homes paid off by retirement, it is a very achievable goal. Also, listen to the podcasts with Richard Carry. He was an active-duty military officer that got out at 20 years and had all his homes paid off.
My goal is to leverage VA, FHA, Cash-out REFI, and conventional loans to purchase one to two properties per year, to hold ten newer buy and holds. From there, I will focus on shifting into multi-family properties, scaling my larger SFH portfolio, or focus on debt paydown.
Sincerely,
Josh