Married life issue

Hi sir / mam, We had arranged marriage in 2017 we both MBA graduated , for past 4 years , she making continuous issues in my home , now we have 1 year old child son , she is pointing on my mother always and creating issues by adding words , lying and black mailing of making suicide attempt and self harming several times , this been escalated to her parents , even after child she is making issues for nothing in it. Already my mother attempted suicide by consuming acid fluid for my sake of happiness in future , because of her my life is spoiling continuous quarrel with her , if thoughts if my mother dies everything will be sort out and clear my route and I saved her by several medical treatments and surgery as working in health care with the support of drs and still my wife didn't change , we had several counselling with elder people and senior people to sort it issue. Again again every three months , making me tensed , irrespective words at me and my mother and made me beat her till January 2021 after that I changed myself and had calm myself after self realization of anger management and responsibility of our life ( My wife and my child and my mother ) . Many times I told her we need to clear on our future and our child health and for his future . Presently we both decided to go to Canada and make our life happier and peaceful and again she created issues on blaming my mother and I have cheated her and I'm fraud and she will not believe me , I doing all good things to her. I'm only son to my family .I lost my father 10 years back. She is alone I have responsibility to take her and my wife and child. Now she asking to come for separate house. My mother in law took her to home it's been 15 days now. She is not brining my child and shown to us. She will manage herself and take care of child she told. Her parents is not advising on her right path and my family members several times taken advice to her in soft manner. We have own house and I'm in good position in office . I'm doing on conscience heart of supporting my wife and my mother. She is not accepting her mistakes she used to show aggressive behaviour anger at me and my mother by using harsh words and her mother used abusive languages at my family . This issue explained to known psychiatrist , Dr told she is suffering from BPD . We thought it will settle down but frequently she is creating issues for no reason on blaming at me and my mother. My mother is soft and comfortable and fearful lady she is 68 years old. She has full confidence on me. What will be best solution for this case. Please help me . Thanks