Landlord received claim of practicing RE without RE licence

[Guilong Wang]

My husband and I own a property and I took care of the markeing, showing and tenant screening. We rent it out months ago. Recently, I receivedd a call saying he represented the state Commonwealth, Department of State, Bureau of Enforcement and Investigation. The person said their office investigates complaints for the State Real Estate Commission. They recieved a  complaint filed against me. This complaint alleges that I am practicing as a licensed real estate agent without a license.

That person asked me to meet him in person and refused to release any details about the compaint. 

Should I be caucious? Will landlord renting out own property need a RE licence(not as I know in my state.)

Has anyone meet such a situation? 

What will the process of the investigation if going further? 

Can anyone share some experience?

Thank you in advance.