2 sentences

1. 他决定放弃对这笔遗产的继承权。

   tā jué​dìng fàng​qì duì zhè bǐ yí​chǎn de jì​chéng​quán.

   He decided to renounce his right of inheritance to this legacy.

   Source: Dong Chinese Dictionary

2. 他声明弃权，放弃了对这项遗产的继承权。

   tā shēng​míng qì​quán, fàng​qì le duì zhè xiàng yí​chǎn de jì​chéng​quán.

   He declared a waiver, giving up his inheritance rights to this estate.

   Source: Dong Chinese Dictionary