Designing a personal financial plan is something that should be done by a professional. The various US investment markets are complicated, although they can be understood with some study. Tax laws, however, are much more difficult to master, and change so frequently that having a professional assist with your personal financial plan can be a tremendous value. Addtionally, for elderly people, an elder law attorney can work with you on your financial plan, while also advising you on legal, health and housing matters, making it simpler to design a life plan.