I would try and keep them if they are solid tenants, it is worth exploring that before incurring the costs associated with vacancy, turnover, etc..

My real estate agent claims she can help find off-market deals, but are there other avenues I should be exploring to find these deals?

For this reason, I haven't explored further.

I'll send a connection request if you want to explore some "out of town" options...Good Luck!!

I know a few people that would co-invest - and I'd like to explore best practices for management by a member, etc.

That's not a guarantee they will, but it leads me to believe that your client should explore other options.

The note business affords you the option to explore many different realms of passive RE investment. 

@Martin B Andersson   If you are willing to sell them at a price that will yield respectable terms for another investor, you won’t have any trouble selling them as a package (in my opinion).

I’ve been tinkering with gmails canned responses and am exploring a VA to handle some those tasks.

I bet they would love you to hire them at that price.