Very mixed reviews on them online. 

Your mix of 20/30/40 foot spaces.  

Anything special to know tax wise that one property i own is a mixed use commercial property that’s primarily used for rentals/residences?

The better way to think about rentals in an IRA is whether such opportunities provide a better mix of principal security and opportunity for growth than other things the IRA might invest in.In addition to using leverage (something your IRA is not benefiting from today, most likely), you can joint venture with other partners on a property transaction, you just have to avoid disqualified parties to the IRA such as yourself, your spouse, and lineal family.   

(I worked up a layout of common storage unit sizes trying to keep a good mix of units) At 80% Occupancy I would be looking at roughly $2900 monthly rent. 

I'm considering a mixed use property - commercial on ground floor and residential/STR second floor. 

I would mix up most recent and earlier episodes without a giving order because their show is not ordered by topic.

Looking for information on how to pre-lease our first mixed use retail / apt.

Then look at retail center mix if you are not leasing freestanding stand alone building.Good luck

And when you add in a wholesaler to the mix, you probably have an extra level of risk because now you're including another potential complication by adding in a middleman - essentially someone who is in between you (the buyer) and the other party to the transaction (the seller).However, with all that being said, there are ways (in my opinion) to limit your risk in these transactions:1)  Always thoroughly review the purchase contract that is being assigned to you.