As suggested the solution is to send him notice to not contact you directly in the future, block all communication,  and I would strongly advise that you tell him that you will release him from his lease and, if your state codes allow it, you will not be renewing his lease. 

I bought a house and house hacked it, I invested passively in a 253-unit apartment complex, I partnered in a single-family real estate solutions company, I closed a 75-unit apartment complex with partners and I’m working on closing another 96-unit apartment complex by the end of the month.

One of them is what some are now referring to as the “Umbrella” factor.

For reference, I live near Minneapolis, MN.I'm looking to turn my current home into a rental property when we move out. 

@Kavin Kuykendall thanks for the reference.

I will ping you with a recommendation as I don’t think BP likes when we post references here.

Some have said to just put one tenant on the lease, but I don't think that is the best solution.

I want the inspector to have the time with their client without my opinions or bias (That's why they are paying the inspector) If they see anything that looks alarming or something they feel we may need to go back with, I ask them to grab me so that I have a reference point for later. 

In the state of IL, the situation you are referring to is called dual agency.

I have 20 years of training and hands on experience in the very skills you are referring to.