u/Mama-DeathEye13

I am a Northern Illinois resident. I am caring for my ex's mother and her current home. Her youngest son was recently arrested and gave poa to his sister. She also has custody of his son. She falsely telling her youngest brother we are selling his stuff, refusing to let her see her grandson and that I'm not doing my duties as a care giver (all of which is false) does anyone know any legal resources that can help me?​