Aggression

I am posting this because I am trying to gently tell a friend it may be time for her dog to be BE'd.

She has a 4 year old intact male Rottie. He can no longer be around company because of his aggression. Last time I was around him, he tried to get at me while I was seated.

The past month he has had a total of 3 bites. One was when her husband reached down to where he was laying at night and he grabbed him leaving puncture wounds. The next was when my friend fell and he attacked her. Also leaving puncture wounds. The third time was yesterday. He just went at her and left a puncture wound.

He comes from a bad breeder whose dogs have health and behavioral issues. She wants to do a board and train, but I feel he is beyond this. They blame themelves for the incidents. And my friend says she's so in love with him and says he cuddles with her all night. But they have to maneuver around him to get in bed.

I think he's unpredictable and told her I am concerned. I said he needs a medical checkup and a Behaviorist, not a trainer at first. I am saying this because I know a vet Behaviorist would probably tell her what I told her. I gave her the name of my dog's vet Behaviorist.

What are your thoughts? And how can I gently help me guide my best friend?