Buy a house using your parents' money, then manage it for them while living there.

I'd buy one, they'd buy the next.  

I either buy it in my personal name or a LLC.

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I have always dreamed of owning and operating multifamily rental properties ever since I was a little kid.My mom has been in realestate ever since I could remember, everything from being a realtor, fix and flips, buy and holds, and long term rentals.

You are not remotely ready to buy my friend.When you find an agent, find a good one.

What does it cost to buy a laundromat?

Does anyone have much success buying SFH with seller financing? 

If it does go to probate, hopefully your brothers and you can amicably go the informal route vs formal (I've worked with families in both when buying properties out of probate and informal is FAR easier).Since there's no debt on the house, maybe you could sell with financing or maybe you could even buy out your brothers with financing -- that way you maintain ownership and just pay them a monthly amount.

Along the deal analysis I am looking to buy and use Deal Machine.Sounds like a great plan!