Which is a common reason for a will to be considered invalid?

A will is typically required to be signed in the presence of witnesses to ensure its validity and to protect against fraud and undue influence. The law often dictates a minimum number of witnesses needed, as well as requirements regarding their capacity to understand the significance of the act they are witnessing. If a will lacks the requisite witnesses as mandated by law, it can be deemed invalid.

While having correct signing by the testator is essential for a will to be valid, it does not alone guarantee validity without the necessary witnessing. Specific clauses within a will can be challenged or may raise concerns, but their presence alone does not render a will invalid. Similarly, if witnesses are related to the testator, some jurisdictions may still consider the will valid, though it could raise questions about undue influence, depending on the circumstances. Thus, the absence of witnesses remains a fundamental reason for invalidating a will.