DEAR ABBY: I’m a single mother of two children, an 8-year-old daughter and a 9-year-old son. My daughter’s father is involved; my son’s father is not. I was diagnosed with pulmonary arterial hypertension (PAH) when my daughter was born and given two weeks to live. My condition has markedly improved, and I am on the best treatment there is for it.
To safeguard my son in case something happens to me, my parents and I did a third-parent adoption. With this new law, I was able to add my parents to my son’s birth certificate without giving up my parental rights, and I remain the sole custodial parent. He stays with my parents three evenings a week.
The problem is, my mother blatantly favors my son over my daughter.

News Source : https://www.oregonlive.com/advice/2024/09/dear-abby-how-do-i-stop-my-mother-from-blatantly-favoring-one-of-my-children-over-the-other.html