Cover yourself by having a signed, notarized document where the seller acknowledges this.

While it's greatly appreciated that they caretake my personal property that they lease from me, they sign their name and initial that they acknowledge and are capable of complying with my rules and my expectations from each and every one of them for being my tenant. not abiding by my simple request to submit their monthly lease payment on or before the 1st of every month as outlined is disrespectful to me and as a consequence for violating our contract, I'm going to capitalize on it earn some extra income.

If you know you’ll need to save up for a car or to pay for your child’s college tuition in three months, acknowledge that.

I would either evict as @Russell Brazil says or get in writing from the tenant acknowledgement they have left and abandoned the property. 

The 2 day of the 3 day seminar the FB team will use out of the 8 hrs available, 2 continuous hrs. to directly promote the MASTERY PROGRAM, all with the audience permission and acknowledgment.

It's not a requirement in many states, but it sure is a good way for you to receive documented acknowledgement of delivery by the tenant as well as providing a baseline to assess any possible deductions on their good-faith deposit upon their exit.  

Tenant must deliver to Landlord (1) a written notice 45 days in advance of the termination clause stating that Tenant has elected to exercise the Early Termination Option and identifying the date of such early termination (“Early Termination Date”), and (2) all Rent and additional Rent due through the Early Termination Date.When Landlord acknowledges receiving the written notice and payment from Tenant, the Termination Date of this Lease shall be deemed amended to be the Early Termination Date.

And in truth, I have to acknowledge that although Dodd Frank and CFPB swings WAY too far on the side of regulation, it was BAD BEHAVIOR by major players in the home mortgage industry that gave justification to the pro regulation lobby.

We both did sign a document acknowledging we were aware of him being a dual agent. 

But, I acknowledge that my ambition and the amount of resentment I hold for my current job might be clouding my judgment.