(SPOILER ALERT) I want to get the charisma bobblehead. And i need to get into cabot house or talk to Edward deegans or whatever his name is. I have gotten a mission to investigate parson insane asylum and i have looked at all the places Edward can spawn at over 10 times each. Also when i try to get into cabot house the they wont let me in. I got 10 charisma. Anyone else got this issuse or know how to fix it?

The Bobblehead is inside the Parson Insane Asylum. There are three missions involved with the Cabot. One where you have to kill a bunch of raiders, one where you have to find someone, and one where you go into the Asylum with Jack Cabot. I think you have to finish the first two before you can enter the Asylum.

there's a tesla magazine on the 3rd floor in a bedroom.

I'm wondering if you have to be on the quest that leads you thru the Parsons building, or if you can go there without any knowledge of the Cabots and get the Bobblehead (I'm guessing you can). BTW, this topic is borderline spoiler and should possibly be moved to the spoiler section.

He is normally at bunker hill just sit in a chair at bunker hill and wait 4 hours, if he still isn't there wait another 4 hours or fast travel away and back, it works every time for me

I don't believe you can enter the asylum at all until you get the quest.

This is correct. The door is locked and requires a key.

On my first play through, I didn't know that and shot the place up, killing all of the Gunners outside of the place looking for the one that had the key. None did and I later looked up online how to get in. So I went to Bunker Hill and Deegan was there to chastise me for killing his mercs, but also to offer me the mission.

So try that. On my current play through, he was just already at Bunker Hill without me having to go to Parsons. Maybe that was just luck.