Definition - What does Vested mean?
Vested means having a right or authority over something as an absolute fact based on legal standing. A person can be vested in areas that cover both tangible and intangible items, such as vested interests in the educational needs of children or vested interest in a physical property. The core of it is that the act is official and legal in the sense that it is absolute. A person cannot give themselves a vested interest without having some form of confirmation from an authorittative partner in some way.
Justipedia explains Vested
Being vested means to enjoy an unconditional right at present and into the future over something. In its most common sense, it is used with property and in clarifying equity ownership. A court can give someone a vested interest in something through a court order or can take it away through the same method.