My selfish sister will not allowed my mother to see her grandkids , Can we take my sister to court?

My sister is selfish and spoiled. Last time my mom saw my nephew he was 2 years old he is now 5 and a 2 year old kid my mother has never met the my 2 year old nephew.

My sister is a narcissistic and selfish she will not allowe me or my mother to be around the kids. We have no relationship with the kids whatsoever. My sister called my mother and I toxic my sister needs to suck it up whatever my mom did to her in the past and let us see the kids.

I want to take my sister to court my mom has each andbevery right to be with the kids amd my sister is obligated to allowed is to have relationship with the kids. My sister is crazy stupid my mother had been in the hospital in and out not once my sister has send us a pay check my sister is wealthy enough and does not want to give is money. I am living in a complex apartment that's paid by the government while my selfish sister is very wealthy and she never offer to buy me a house or pay for my mother's hospital bills.

My sister has been talking to this crazy 48 year old therapist and this crazy therapist advice my sister that she has no obligation to maintain a relationship with family relatives. Crazy shit y'all.

My selfish sister will not allowed my mother to see her grandkids , Can we take my sister to court?
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