That's unusual and it would be very difficult to find a passive investment like that.Also direct control means I know exactly what's going on.

With all the measures they have, it's never been an issue to my knowledge and the neighbors would let me know in no uncertain terms, as they had a poorly managed STR in the neighborhood previously. 

That was an unusual set of circumstances that was created in response to covid, so it would likely take extenuating circumstances for that to happen again. 

Unusual amenities?

For example, it is not unusual for me and my business partner to buy 4-unit buildings for about $250k and be able to rent them out for $4,000+/mo. 

However, I find myself uncertain about how to structure such deals and whether I could successfully secure them.I was wondering if you could offer any recommendations for educational resources that might help me better understand and navigate the intricacies of creative finance and seller finance deals.

That would be unusual for the docs to say that however. 

This is not unusual in the retail real estate agent world. 

In rare instances we will let someone pay through Square or Stripe, with them paying the cc fee, but only in unusual cases, such as one time with a tenant who was traveling and didn't have a bank account to use with our online platform.

Unless you have unusual circumstances such as a month of DIY repairs on one of the houses, your wife would need to find more real estate work for herself.