@Dan Marshall the tenants are protected by their lease, so the two issues re selling now would be inconvenience of showings for the tenants, and whether the property will fetch a higher price as a retail sale (as you suggest) or as an investment...I'm with you--if it's more valuable to a homeowner, you might want to wait it out....or, you could cash for keys your tenants and sell sooner.

Two hours is perfect because I'll have to spend that much time on the treadmill working off my dinner today.

To this date unless the water lines were purged & then filled with RV freeze protection its not a guarantee.

Typically if they have plans to move they will not want to spend any money on the space in the short term.Howe far in advance do they have to give notice to renew the lease before exercising the first option period?

First, I want to the Express my Gratitude to God in advance for the amazing thinks he has in the future for me: The Inspirations He will send my way during prayers and meditations; The blessings and guidance in my daily encounters; The amazing time to look forward to with family and friends; The Fruitful relationships I will continue to develop with my patients, clients, coworkers, fellow investors and entrepreneurs, and all other professionals; Abundant spiritual, mental, physical and social health; The constant awareness that “I don't wanna spend my whole life asking, What if I had given everything, Instead of going through the motions?”

Spend your air fare on them instead. 

You need something to protect you against all the eventualities - like another broker stepping in and claiming "procuring cause" for the buyer.I'd talk with your broker and get an attorney to draft that agreement.   

If selling is warranted then a 1031 exchange will at least protect you from the taxes and depreciation recapture.

I don't spend much time on Forums, but my nephew has recommended Biggerpockets to me as a real estate agent who would like to experiment more actively with investment.

The only problem is that you will now have a payment against it if you spend it (which you would on the down payment for property #2) and you will have difficulty (I think) refinancing property #1 in the future with a active HELOC on it.