Should I take extra steps to verify their identity and legitimacy?

Just be sure to stay on top of your contributions, fees, and any extra paperwork so you can get the most out of those “triple tax” benefits.Hope this helps!

Quote from @Caleb Brown: Someone else asked but what would market rents be including the extra storage?

then theirs charges 1000s in extra fees. 

However, having an experienced real estate agent or investor in your network analyze comps adds an extra layer of confidence.If you’re focusing on specific markets and ever want to discuss analyzing deals or strategies, feel free to connect, Our firm would love to help you! 

There is no additional "risk" on the note like a demand clause etc, but you have  extra expense in upfront one time costs and the pre-payment penalty that most programs are sold with if rates do drop as expected in the future.  

I've gotten a few extra hits off there.

Is it worth the extra work?

But if you want to use a conservative approach and use the extra cash flow to pay off debt versus further investing, I think that's a very legitimate way to go about it.

(You say it’s worth about $100k more than you’re paying so figure an extra $15k.)Maybe you’d be better off partnering with the parents unless they have zero interest?