Mom has an 80 yr old man living with her since 05 and he has turned her against me. What do I do?

I'm an only child and I live in Fl and my 85 yr old Mom lives in Al. I have been left with the decision to put her in a NH, because this is the only answer I have, so I can at least see her and or talk to her everyday. Since this "bum" has been there, she is living with no plumbing, no central a/h, broken windows, roaches , just in filth. ( the lists goes on). I don't know what to do about getting her in a NH down here in Fl where I live. Her home is more n likely needs to be condemned, except for items in house that I would want to keep, if they are even in good enuff shape to keep...ex: family photos , few antiques etc. This man has brought tons of "garbage" into the home and it would make a good "hoarder show". Mom needs medical attention and he is constantly saying hes got her appointments to go to the doctor. I have called the police 3 times in 5 yrs, just to have them do a welfare check, well, this man living with her is all mad , saying if I call them again, that the police told him , he could press charges on me for "Criminally harrassing the elderly". I cant even talk to my mom (been a month now), cause he either cussess me and hangs up on me or the phone is busy for days or theres no answer. Also he drives Mom around in a vehicle that has expired tag or stolen, and no insurance and he drinks and I have heard him yell @ Mom . He has turned mom against me. Plus, theres other things that he does or has done that he just hasn't gotten caught. To make this story alittle shorter, I want him out and Mom in a home. Mom has either dememtia and / or altheimers, she thinks her sister and her mother are still living and she dont realize she has grand and great grand kids , Please someone tell me what i can do, where do I start? PS...For all I know, this idiot could of done away with her, I do not trust him as far as I can throw him!