Question

Scenario 1:

John and Jane are getting married and are entering into a prenuptial agreement. As a gesture of love and support, Jane's father wants to donate a piece of land to John and Jane as a wedding gift. However, Jane is concerned about the implications of the donation and its effect on their property relations. She seeks your advice.

Scenario 2:

Andrew and Sofia have been married for 10 years. Last year, Andrew executed a Deed of Donation, donating his ancestral house to his sister, Maria. Sofia was unaware of this donation until recently when Andrew passed away. Upon discovering the donation, Sofia wants to know if the donation is valid and what her rights are as a surviving spouse.

Discuss the legal implications of the donation propter nuptias and void donations under Articles 82, 83, 86, 87, 43(3), and 50 of the Family Code in the given scenarios.