I think if you intend to engage the services of the real estate agent later in the transaction - in other words, there is an assumption of payment - it would be fine to reach out for comps.

You really need a Termination Agreement signed by both parties because contract dates are actually not absolute unless it includes special verbiage like "time is of the essence". 

Longer story shorter, they signed a new lease at a higher rent when the time came. 

Also, my relinquished property did not have any debt.Can I purchase the property in a cash transaction and thus satisfy the 1031 exchange, transfer our interest in the TIC into an LLC and then cash out refinance to have funds ready for the next deal? 

Will you sign on the loan?

They were sure that their house would close on a certain date post lease-signing, and upon my urging (twice) they confirmed with their real estate agent that their buyer's financing was secure.

In 2016, Ducey signed a new law that prevents municipalities from restricting short-term tourist rentals and also ensures that renters pay applicable taxes.Rillos, the Airbnb spokeswoman, said 1,900 Tucson properties are listed on the platform, though not all are actively renting.

She will need to be able to afford the property on her own or you could co sign to get loan if her debt to income it too high.

One week before the final signing the buyer loses their job after which the loan processor calls the employer to verify employment so the deal can not close.

Some of that has been changes approved by myself but a lot of it is stuff he didn’t estimate properly when we signed our contract.