My brother and sister have just decided to make decisions about my Mother's care and disposition of her home without including me...help!

My Mother is in hospital after a heart attack and a stroke; we three children have been making decisions together via phone and conference until just this week...when all of a sudden all calls and messages/conferencing stopped.

Just found out that my two siblings authorized my Mother to be admitted to a Nursing Home after we decided that we would try to keep her in hospital for a longer period and studied on how to do that. Mom will only have 95 days of care in the Nursing Home via her Aetna Medicare. She has been in the hospital since August 2nd and was recently moved to the Rehab Floor. After less than one week the staff approached us and said that she was not progressing fast enogh. They have been pushing hard to get her discharged. She is 91.5 years old and has been improving slowly from complete left side paralysis.

During this hospitalization, my Mom's home was mostly/partly vacant so, without notice, my sister, the youngest, had her not-so-reliable and creepy brother-in-law move into my Mom's house...supposedly he is doing yard work because he cannot pay any rent (he only works part-time).. My Mom's home is like her own personal museum, packed with collectibles and her treasures. My sister had this same relative living with her and worked diligently to get him out of HER house. He works as some kind of aid at the same hopsital that my Mom is in. He mostly does wheel chair transport, nothing medical. This man is not stable, cannot maintain employment, has been dismissed from jobs for inappropriate interactions with female co-workers, has been known to use drugs and frequents women of questionable repute.

My Mom's home is in a family neighborhood and he is not a trustworthy inhabitant. Anyone know what my legal rights may be to disengage him from my Mom's home? Being one of three, I am not sure of my footing here. There is no POA in place other than a Medical one. My sister further informed me today that she wants to have this man stay with my Mom at night when she has to be sent home from the Nursing Home after her 95 day eligibility lapses to save money on private care. Of course...he has worked in several facilities on night shifts, but was fired or was allowed to resign from all due to questionable behavior and poor work ethics. My Mom has only ever been cared for by family or the nursing staff, mostly female. She would not be comfortable with this person staying with her...she did not even want him in her house when she was well. I have to admit, I am hurt, but more so, enraged, that this was done, and decidely, behind my back, too!...with an "oh, I thought you knew" kicker was the response I got from my sister...any suggestions???