My father is 62 years old. Since past 10 years he has been facing severe financial crisis. He continuously tries to keep himself aloof from the fatherly responsibilities and adopts aggressiveness and violence  whenever we approach him. He denies his own aggressive actions and words at his own convenience. His hostile attitude towards us have caused a lack of trust among us and I am afraid that things might get even worse.  He has a history of strained relationship with his parents and siblings. Is this a behavioral problem and a case to seek expert help?
I appreciate your query on Chat Doctor. Based on the history I would suggest you to seek professional help as it appears not only a behavioral problem but psychiatric disease may be the reason of such behavior. Prolonged stress, mood changes, aggressiveness all point towards to some psychiatric illness going on. Is he suspicious of people around him? He might be aggressive due to paranoid thoughts coming into his mind. A detailed assessment and medication will help him. I hope you find this helpful.