Comprehensive Estate Planning Strategies for a High-Net-Worth Client

Imagine that you are a financial advisor working with a high-net-worth client, Dr. Alex Carter, a 62-year-old physician with an estate valued at $15 million. Dr. Carter is married to Jane, who is 60, and they have three children: Megan (31), Ryan (28), and Sarah (24). The couple's assets include a family home worth $3 million, a diversified investment portfolio, an art collection valued at $1 million, and retirement accounts totaling $2 million. Dr. Carter is concerned about minimizing estate taxes, ensuring a seamless transfer of wealth to their children, and incorporating charitable giving into their estate plan.

Your task is to create a comprehensive estate plan for Dr. Carter and his family. Discuss the strategies you would recommend to address Dr. Carter's concerns, and describe the implications of each strategy on the estate, tax liabilities, and family dynamics. Additionally, consider the importance of family communication in estate planning.