Is someone who deceived my father into writing a will subject to inheritance?

Hello. This is the inheritance specialist attorney at Daeryun Law Firm (LLC).

First, as you mentioned, deceiving your father by saying his estranged sibling died and having him write a will constitutes legal fraud and duress.

Under the Civil Act, a person who, by fraud or duress, induces a decedent to make a will regarding inheritance becomes disqualified from inheritance.

This means that they may not be able to inherit under the father's will.

In this case, the will is not validly executed, and if inheritance was received under that will, the validity of the will becomes void retroactively.

In short, that share of inheritance disappears, and the remaining heirs (excluding the disqualified inheritor) inherit equally.

For situations like this, it is important to find a more concrete response plan through legal consultation with an inheritance specialist attorney.

It is necessary to accurately understand the facts of the case, secure sufficient relevant evidence, and clearly proceed with the inheritance procedures.

Please promptly request help from an inheritance specialist attorney with rich experience in such cases.