Bought 3 SFHs. Need advise on where to go next.

[Chan Park]

Hi BP community, I have been watching and listening to podcasts and youtube videos from BP consistently but I still feel stuck where I am, and so I am asking for your input as to what I need to look into or suggest books I should read. 

The last two-year run has been amazing for my family as we now have 3 SFHs in Austin, TX. Two SFH are being rented out and cash flowing very well since we bought them during the first wave of COVID. One of them is a secondary home and the other is an investment home. They have about 175k and 290k of equity, respectively. Our 3rd house will be a primary home and is a new build scheduled to be finished by end of this year.

I am a vet, so I am thinking about using the VA loan for the first time, but I'm still planning to put down 20% for the primary home. My ultimate goal is cash flow so I want to look at multi-family. For my next project (after closing our primary home), should I use my VA loan on this property instead and cashout refi on our investment/secondary property? I have never cashed out refi yet, so how will that affect my current cash flow?

Thanks for your input!