I hope you have a lot of cash available to cover the FTC fines. 

I generally see literature as such, and cannot tell if having a part time employee removes the chance of solo 401k or if the custodians just don't want to deal with it:"IRS rules prohibit contributions to a solo 401(k) if you have full-time employees, but you can use the plan to cover yourself and your spouse into retirement."

Have you called the housing authority that covers this property to confirm the max rent based on the # of beds?

The mortgage would be $5,200 so I would cover the other $3,200.

The other hurdle many run into is that you need to have funds to close and cover reserves in a US based bank account.  

The terms are usually more flexible than hard money, and you can negotiate interest-only payments until the flip sells.Business Credit for Real Estate – A lot of investors use no doc 0% interest business credit to cover down payments, materials, and labor costs instead of tying up personal cash or taking on a loan and you .

I always need to remind myself about that, because I also (like many millenials) have a problem remembering what my bigger picture goals are, so I tend to want to sprint so that I don't forget and hence lose myself in the flywheel that is day-to-day living.

After the initial inspection we sent a response to the inspection asking for $21,500 in seller credits to cover the roof and furnace (both needed replaced). 

However, in the off chance that I am not able to cover my gap funds (est. $200-$300K) from that small circle, how would you recommend I start branching out?

Take some pictures of the house and the condition it is in.