A concerned aunt : child custody?

i knowu love ur sister and u will always be there for her and im like u i have 2 other sisters im the oldest im 23. i have kids too. butif ur doing all this good stuff for urself and u wacth ur kids and everything and if u work more then her. then show her that if u can do it so can she u didnt tell her to lay down. u love ur nephews but she needs to be a better mother and stand up for her kids to her baby dady. tell her that she is taking advantage of the love u got for all of them. its not that way ask her if she will go has far has u gone for her for u. im not bien a ***** but ive gone threw that too with my own family.thats how i did it. It may work for u