Signing someone else's name on a check
Signing someone else's name on a check is generally considered forgery and would be illegal in most states, says Carol Kaplan, who is a former spokeswoman for the American Bankers Association in Washington, D.C. But suppose an adult child signs an elderly parent's name because the parent is incapacitated, or a parent signs a child's name because the child is away at college. Guess what? Those signatures are still forgeries, unless a power of attorney is in effect.
"In most cases, it's on behalf of a loved one who probably isn't going to object, but people should know that that's forgery," Kaplan says.