BiggerPockets is an excellent resource to kickstart your real estate journey.I recommend that you take the time to define your financial goals and always keep learning.From insightful podcasts and informative blog posts to interactive forums and detailed guides, BiggerPockets provides a comprehensive suite of resources designed to empower you with the knowledge and confidence needed to navigate the market.

Then keep doing it over and over again.

That may keep your cashflow the same or even lower it a bit, but you have 4 assets that are appreciating instead of one, 4 mortgages that are getting paid off by the tenant, depreciation and you diversify your risk in 4.Regarding the tax question, you may want to talk to your CPA about that.

My goal is to build a successful flipping business while keeping family time a top priority.

@John McKeeHi John, I can give a brief high level overview.A Delaware Statutory Trust (DST) is a passive investment vehicle that is generally used for real estate investing.

I would keep as much liquid as possible and essentially get you to 20% equity or more by renovating the property. 

@Jay FayzIt's possible to use an FHA loan with a 5% down payment, but keep in mind that the loan is intended for primary residences, and you'll need to live in the property for at least a year.

Any other BIG advise on other issues I need to keep in mind?

Selling gets a tax free gain and allows you to be more liquid; keeping it allows you to have once in a lifetime cheap debt and have that leverage on an appreciating asset. 

Personally I like keeping my properties that I know are successful and have low maintenance.