"If you are like most people, you will waste a lot of time wondering about the proper way to address a female friend of yours who is a doctor, married and has kept her maiden name. "Um, no. Nope. Never. Why on earth would you? Hasn't she made it very clear how she wants to be addressed? Where is the problem here? And just in case you were
Avoid using Ms. in social stationery. It is typically more appropriate for business.Don't even think about it. More help here.