The downside to this is that it's pretty much a sit-and-listen to Bob event, with no opportunity for networking, at least not the last time I attended, which was a long time ago. 

The downsides seem to be that it could take longer to find tenants and larger homes may require more maintenance.

I appreciate there are some downsides to condominiums,  but are they a viable option in this market?

The ROI is positive, but the customer experience is the downside.

The downside to this is sometimes they don't want to tie up their money.  

Downside would be paying a higher rate, interest-only payments and/or closing costs for a new loan.

It could require someone moving to the location.I’m just feeling like I have an exceptional opportunity here with great financials even modeling a downside case.

I don' know what down side you may run into house hacking to be honest.

If you choose to make Roth contributions, your qualified distributions are tax-free.On the downside, there are prohibited transaction rules that prevent you from using the retirement funds in your own interest before taking distributions.

I could imagine houses/scenaros where they are needed, but most homes its mostly downside