Kind of, they are not really important in the later part of the manhua
They are taken care off and being kept an eye on after she got married since they are known to be very spend their money and show it off on anything and I think they get an allowance as well. As far as we know, her nephew is very precious to her so she sends him to school. But she doesn't cut ties with her family or get rid of them. It may seem like it but the story is heavily focused on Courtney and Richard and their acts.
They are not apart of the main story, but yeah that's all we know after is they are being being watched with a limited allowance for being spoiled and greedy, and that her nephew is being taken care of and sent to school (I am not sure if it's a prestigious school or not).
Only on like chapter 15, can someone pls tell me if she gets rid of her family? They’re pissing me off