My first question re buyer's termination is: what does the contract provide? Just because they wanted to close in 9 days does not absent an express change to the form agreement translate into a waiver. I have to guess they would still have wanted to do an inspection.
As the behavior of the agent, I cannot say unless he/she knew what was up. Consider making a complaint to the Arizona Department of Real Estate if you feel the agent harmed you. However, if, in the end, the buyers did have the right to terminate, it may not be worth the trouble. Better to focus on getting your home back on the market and sold!
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