Here is the translation of the legal analysis:
1. Subject of Dispute: Determination of heirs’ shares in inherited property (residential house) after parents’ death.
2. Main Court Arguments:
– The disputed property belonged to the parties’ parents as joint common ownership
– Plaintiff PERSON_1 actually accepted the inheritance after the father’s death but was not fully taken into account during inheritance distribution
– Declaring inheritance certificates completely invalid is an incorrect method of rights protection
3. Court Decision: Amend inheritance certificates by reducing PERSON_2’s share from 1/2 to 3/8 and from 1/4 to 3/16, and recognize PERSON_1’s share as 7/16 of the inherited property.
Important: The court deviated from previous practice of completely invalidating inheritance certificates, proposing a more fair mechanism of partial certificate modification.