I think the "shakes" and insomnia (at least for up to a few days afterwards) are normal after a high-stress/potentially traumatic experience.  

If you can’t see it - it’s a gamble plain and simple.

Is this letter normal?

If they don't exercise their option, the lease continues as normal until the end of the 24 month term.3.

You use the same contract, but there are certain areas of the contract that you need to fill out different than an agent or "normal" buyer would. 4.

Blessing because you know you'll always be renting them out normally.

A supply and demand type deal for a few months then it will all get back to normal.

We came to Normal, IL from the Minneapolis area approx. 15 yrs ago, but we think about going back to Mpls on occasion (I'd prefer to get back to the Chicago burbs where I grew up, though). 

I have more tenants than I know what to do with normally!

Normally rent to own is for motivated sellers and is not the best for the seller/owner, which is you.