A will and trust can be written in a legal and valid way as long as:
a. The writer has mental capacity to write a will or trust
b. The document is signed by the writer
c. The document is signed by 2 witnesses and/or a notary
NOTE: Signing requirements vary between states so be sure to familiarize yourself with your local laws.
By taking these steps, you can create a will or trust with confidence, knowing that it will be legally binding and enforceable.