I've been thinking about this all day and finally got home to reply. I wish that meant that I had some amazing words of wisdom, but I likely don't.
I think that the five stages of grief, denial, grief, bargaining, depression, and acceptance do occur but not necessarily after you leave. I think it's part of the process of leaving and then continues some afterward.
For me, I was super anxious right when we left, but it was buffered with this almost manic sense of freedom. It was without compare. It was maybe a good anxious, as anything was now possible and I was free. I had a lot of time to make my decision to leave though. I'd say it took maybe six years of getting healthy enough to do so. Really, our path afterward was nothing short of fantastic. Lately I did get down and posted here a bit, but I'm past it already. It was just a minor funk, likely caused by some things I referenced in the thread.
I gave my example a little just for context, but honestly I think that there is no list of phases. Everyone exits in different ways. You were preparing mentally by reading apostate stuff, but you were caught and thrust out without it being your choice. You lost your wife and share your child in a different way now. My experience is so different than that. I really think that we all come out in different ways and that it impacts those phases. Plus, we all have different emotional makeups, different social circles (or lack thereof) when leaving, etc. It's kind of amazing that we all spent years in an organization doing pretty much the exact same things, but we all have such different experiences on the way out and after.
I'm so sorry you found yourself homeless. Isn't it awesome though when those evil "worldly" people prove themselves better than the dubs over and over again? I mean, the acts of kindness toward us have been so much greater than anything experienced in decades with the dubs. It just affirms how much we were lied to by the dubs who mischaracterized an entire group of people to make them so ugly you'd be afraid of them and stick closely to the Borganization. Isn't that sick?
I don't want to pry or anything, but if you need any financial advice or ideas on how to make some money or something shoot me a pm. I'm not rich, but I've turned my financial situation around completely and money is no longer a worry, and my wife and I don't have any special skills. I just listened and learned from people that had been through the wringer and had wisdom to offer.
It sounds like your brother is really falling for the fantasy of the JWs, and I'm sorry. It unfortunately dehumanizes people. It steals their compassion for the world and makes them self-centered, looking for the panda paradise to come fix their problems. It also makes them paranoid, as you see from his comments about apostate materials. I was paranoid like that. I was shaking the first time I came on a site like this.
Hugs man, I'm so sorry about your family. It's an unfortunate reality that they will cut you completely off 99% of the time. We got to leave on our own initiative. We knew exactly what the consequences would be. We had seen our families shun before and knew what it would be for us. I think those expectations made it easier to accept. It sucks though, doesn't it, no matter what you expect.