Yes.. for pp to take advantages.
In-laws are usually cool.....it's the Out-laws you need to watch out for...LOL
Sometimes they just need to be put in their place.
The lawyers wrote it that way for their enjoyment of frustrating everyone.
Oh you said in-laws. My bad, they can be *******. She needs to get a grip, why should she be jealous of you. She's married to your brother, it's not like you are going to steal him away.
You need to speak up. Tell her if she has a problem with any of your family its okay, but you wont allow her to be rude and disrespectful about them in your house.
I had a sister in-law that would always talk nasty about my family. I basically gave her the cold shoulder and ignored her. Then she could go off and talk to someone else nasty about me...LOL. Than goodness my brother finally woke up and divorced her. No more dealing with that.