Micheal wrote:
Your concern should be for your mother's health and screw the family drama. In reality check mode your opinions or actions on your mother's share of the company means nothing to anyone unless your mom asks for advice.
So, when you visit your mom look for signs that she is drinking regularly, and to excess. Check the recyclable waste can, etc. Tell your mother, gently that you think she should see a grief counselor. Offer to take her. Spend some time with her, more than you usually would. If it is as bad as you think, perhaps she needs o be going to an alcohol recovery program. Check with your local city/county human services and see what is available.
There is a relatively new and growing in popularity kind of counseling called Screening, Brief Intervention, and Referral to Treatment (SBIRT) which may be helpful, if your mother could accept she has a problem. Basically, a trained substance abuse counselor does an assessment of what and how your mother is doing, with her, suggests a few things about how to stop or at least slow way down, and refers her to treatment if deemed necessary.
Be the good son. Alert your father if and when you think the problem is getting out of hand with her.
As for your aunts and uncles, let them do their drama among themselves and try to keep your mom out of it.
Oh, and yes, real people act that way and worse. Sitcoms actually keep it cleaned up so they can put it on TV. People can be pretty horrible.
The alcohol thing hasn't been an ongoing problem, she rarely drank before this. It's just been the last few days that it's been an issue.