In regard to a commissioned sales person /employee. Can the commission be reduced upon reasonable notice - say 6 months to 1 year notifying sales person reduction is coming.

It can be reduced, if sufficient notice is given. The amount of notice would vary and is the same amount that would be owed if the employee's employment was terminated. In other words, you have to look at the person's age, length of employment and position. I am happy to discuss in more detail.