I took two business law courses in college. 

Yours appears to be a business-purpose (investment) loan.

The Creative Investor Meetup is designed for beginning to advanced investors who would like additional strategies when constructing deals.All aspects of real estate investing will be covered including (but not limited to) - Wholesaling, Flipping, Buy and Hold and Commercial with an emphasis on Creative Financing.

Specifically, must this be a commercial/business loan type where you have higher rates and shorter loan life or is there an alternative loan type? 

Which is a tax when you do an active business in your IRA but it is essentially the same thing. 

I'm going off the understanding that you still need to spend 500+ hours in the business to achieve material participation (please correct me if I'm wrong). 

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I had little choice since I was financing out of a construction loan that had little time before a ballon.

Like Having a great base of index funds and a fully funded IRA before throwing savings into crypto or the newest AI quantum-powered dog walking business! 

Most importantly, they are disrespectful and bad business people.