Yes you can still have visitors if you've been Baker Acted and sent to a mental health hospital.
And you can visit someone who is baker acted as well as long as you go during visitor hours and it's usually just the close family that can visit someone who is baker acted but they can allow others to see the person who is baker acted as long as they get permission from the person who is baker acted.
Just saying you want to die can get you baker acted so don't do that especially on camera.
I once when living in Florida was talking to my sister on the phone and I told her I wanted to die and I was feeling depressed and then after that police showed up at my door and I told them to just leave and that I just wanted to lay there and die.
The officer baker acted me and took me away to a mental health hospital for 72 hours and I was on suicide watch.
I wasn't gonna actually kill myself nor could I do so and I was just saying things like I would say when I'm sick with the flu I would also sometimes say I wanted to die.
I didn't say I was gonna kill myself but that I just wanted to die.