You have a freelance job and you can qualify as REP I sharing this from my personal experience.

The GC is a business person who doesn't care about your ARV, LTV, or your budget.

The owner was motivated due to personal circumstances and wanted to avoid the hassle of listing the property publicly.

You missed an important item: Depending on how a person does #1 or #2, it could get them: A fast-pass to the "Principles Office" for "bullying" and now there sitting in "detention".... 

Buy it personally, and rent it full time to my C-corp?

As per their terms of use, "The Site is provided solely for your personal noncommercial use."

Again, this is a conversation to have with your accountant to ensure the benefits would outweigh the costs.Another misconception is that there is little value in a cost segregation study for properties that do not have a lot of personal property in them or very little interior build out, such as industrial warehouses.

By year 5 we had around 55 people.We did hire a marketing person but frankly marketing wasn't our strong suit. 

What types of IRS/CPA approved payments are working well for rents to LLC entities to keep personal and business funds from co-mingling? 

OTM was more a round table discussion of current events, predictions, news etc as it related to real estate, where the hosts also provide some great personal stories that relate to the topics discussed.