Deanna Brann, Ph.D., Author, Reluctantly Related Revisited. Dr. Brann is a leading expert in the field of mother-in-law/daughter-in-law relationships. She has over 25 years experience as a clinical psychotherapist and ran her own private practice for more than 18 years. Based in Knoxville, TN, Dr. Brann is a sought after speaker, author and seminar leader. She is also the author of Mothers-in-Law and Daughters-in-Law Say the Darndest Things!