The question title may be a bit misleading - it's hard to word my issue. Apologies in advance.
I am 27 and my sister is 23. We stand to inherit a 1500 sq. foot home should anything happen to my mom, who currently owns the home. My mom is nearing 60 years of age.
My sister and I are like night and day. I completed both a bachelor's and a master's degree debt free, have $100,000+ in savings and got hired out of college as a software developer at a healthy $90,000 starting salary. My sister on the other hand has a long history of psychiatric problems, drug use and promiscuity. She has dropped out of college and has net earnings of < $5,000 annually. She never has more than $20 in her bank account and spends all her money on reiki healing, crystals and all that other pseudoscientific healing garbage. My sister also lives off my mom and has never held a serious job. Psychiatrists have suggested diagnoses of both schizophrenia and/or borderline personality disorder.
I have severe concerns about inheriting a home jointly with someone who is disordered should anything happen to my mom. Myself and my sister get along (usually) however the big issue is that she has nowhere to go should my mom pass away and will refuse to sell the home whereas I want to sell the home as fast as possible such that I do not own a joint venture with her. She does not understand that owning a home doesn't mean one "owns" the home - there is mortgage to pay, property taxes, utilities, etc. In her opinion, this is a conspiracy by Big Brother government to overthrow the public. Inevitably, the home will be lost due non-payment, neglect, among other possibilities.
A question from my mom: Is it possible to re-draft a will such that a third party could sell the home on our behalf? What are the steps involved?