In 3 9-hour days, however, there isn't time to go into much detail on any one topic.

Any ideas would be greatly appreciated.

According @Dmitriy Fomichenko's reply at https://www.biggerpockets.com/forums/51/topics/119..., we could both contribute to the same Solo 401k plan, but our funds have to be tracked separately.  

If you've learned the terminology, learned how to run the numbers (accurately), figured out a strategy that works for you and have a realistic idea of the rental rates in your market, then just do it.

Sadly, it won't help my credit since there is no mortgage on it - and it doesn't even appear on my credit report.Thanks for all the good thoughts and ideas!

It will give you an idea of how your home compares to other options tenants have.

Sounds like you were sitting on the idea for a while before you got started. 

Agreed, having at least some cash on hand at all times is a great idea.

That would be akin to a snake eating its own tail.Too much time on the internet can definitely lead to confusion on these topics.  

Sometimes realtors have creative ideas of their own about how they are willing to structure their commissions.