36,
If we could all parachute in like 'Band of Brothers', then maybe lots of different things could be done simultaneously. However, the reality of it is that there is you, your lawyer, and a few friends (like that cop). That means that you really need to focus your energies on the highest priority items, and work your way down the other stuff in order of priority. If at some point, you just want to drop it, that's fine. It's your life, and your choice.
Looking at your situation, it seems to me that priority number one is the divorce. You have your lawyer to take care of that, and although you want things over quickly, I think you should not pay a heavy price for that. You have worked hard for what you have, and I think most people here feel worried about you giving too much away. If you make a really bad deal just to make it all go away quickly, you may end up kicking yourself years later. So, maybe it would be best to set your lawyer on 'attack dog' mode, and you can then ratchet back and do whatever horse-trading seems appropriate. That seems to be standard operating policy in all legal cases anyway, in my experience.
Once the divorce is settled, you can - if you wish - collate all your evidence about that organisation, and talk to some PIs or investigative journalists and get their take on it, and how things could be taken forward. Given how fast they all are to call the police, it makes me think they're hiding something. However, you are not a cop, a PI, or an investigative journalist, which is why I think your idea to hand things over to a pro at some point is exactly what is needed.
What you cannot do is tackle both things at once. You already feel exhausted, and it is good that you acknowledge that. You should not push yourself excessively, particularly after your cardiac incident. So please ratchet back, 36. Talk to your lawyer, set the divorce wheels in motion, and do not entertain meetings with your wife held anywhere but in your lawyer's office.
No 'counselling', no well-meaning friends, no invites from single ladies whose timing is either miraculously spot-on, or possibly set up in collusion with your WW, maybe with the aim of letting the wine flow, and finding out what your plans are. Regardless of motive, all of those things are distractions from the big, main project of getting yourself out of infidelity. Focus on that with tunnel vision, and let all the do-gooders and well-meaning folk look after one another. Be polite, of course, but be firm. "You're very kind, but no thank you. I know what I have to do, and I am doing it. However, it would really be great if I could contact you if I need help. Would you be okay with that? I would really appreciate that." That way, they feel like they are helping, while at the same time they are not getting in your way.
Ultimately, 36, your goal is to free yourself from the situation you are in, and start a life that does not include any of the toxic people who have caused you problems. To be free, to feel the sun on your face, and to rediscover how to be happy again. That can only come from getting yourself out of infidelity, which is way I believe that should be your main priority and focus. If at some point you can pass your evidence to some professionals who can go after that rancid office, that's a bonus, but it's not essential to you getting your life to a better place. We all want that for you, and you know that you deserve it.
And spending the rest of your life alone? My friend, you are a good and decent man, and you will only be alone if you want to be. I know this is not the time to be thinking about future relationships, but there are plenty of women around who would see your good qualities and want to be with you. Sadly, 'Just Found Out' is full of heartbreaking threads from women who have been treated terribly, and who would read your story and think, "My God, why couldn't I have been with that guy instead of the rat POS who ruined my life?" Emotionally, you may not be ready yet, but seriously, 36, do not write it off long-term.
[This message edited by M1965 at 2:04 AM, October 26th (Thursday)]