The best way to ensure that they know and understand your wishes, is to take a copy of your advanced healthcare directive or living will with you to your next check up and talk to your physician about it, then ask them to keep the copy on file.
A No Contest clause is mostly what it sounds like. It is a paragraph that can be included in a Last Will and Testament or a trust, which basically states that anyone who challenges the validity of the document or the way it distributes or manages the assets of the estate will receive less than what the document would have otherwise allowed.
The first thing to realize is that as soon as you marry, your spouse is granted certain inheritance rights under law. However, these rights of inheritance can be waived or modified by using an anti-nuptial agreement, or as its more commonly known, a pre-nuptial agreement.