How can a will be challenged?

Oftentimes someone will want to challenge a will, claiming it is invalid, because they believe they would receive more property without the will (that is, via the state intestacy statutes). Generally, anyone with a non-speculative financial interest in the probate estate can challenge a will for any reason which would, if they succeed in making their argument, invalidate the will (or even simply invalidate a portion of the will). Such a challenge to a will’s validity is known as a will contest, and each state has its own law for when such a will contest must be made.