In my area, I've found only one company that seems to deal with this regularly, but they don't respond to emails very quickly.

It seems like a pretty legitimate deal.  

I don't believe in generational wealth, and I don’t intend on having kids but even then it seems like the traditional way of doing things is to wait to reap the benefits of ultimate cash flow and equity when I’m 60!?

Your process seems like a good way to determine cash flow / potential of an investment property, if you have a realtor you can have them pull rental comps for a decent picture of the rental markert as well. 

My data source does not seem to show foreclosures in South Carolina at all.

I'm not an attorney, but having them under a holding company LLC seems like a risk of having a judge rule that they are all part of the same company de facto, and liable for losses from others.

House hacking is a great way to get started in real estate investing, and it seems like you've considered some solid strategies.Since you're looking to connect with individuals in the greater Houston area, here are a few suggestions to expand your network:Local Real Estate meetings: Participate in seminars, networking events, and local real estate meetings.

It seems like since I am a grandchild and not a child most of what the q&a’s do not apply to me.

It’s tough finding information on how it applies to multi family properties.I’ve also reached out to a few lenders and it seems 15% down is the minimum for a duplex unless it’s FHA.

Your situation does not seem to qualify for the tax base tfr.