Legal Question in Business Law in Massachusetts

If you have trademarked the logo nationally, yes you can stop them from using it.

As a Franchise Attorney I can say the following. The question and the ideal answer are a little too fact-dependent to be answered without full information and evaluation. For example, how have the parties protected their logos? Was it a state registration, a federal registration or merely common law rights? Are the logos confusingly similar? What were the actual dates of first use and where? Consult with a good business or franchise attorney in your area for specific advice.

Mr. Franchise - Kevin B. Murphy, B.S., M.B.A., J.D.

Franchise Foundations, a Professional Corporation