I can help you on the physical mailing address and/or PO Box.
But both must be done to
1) preserve some privacy
2) not hit bumps in the road for business
The method is to get the physical address first, then use that to obtain a PO Box
The best services to date are America’s Mailbox (America’s mailbox dot com) and Escapees dot com.
AMB is cheap, reliable. Escapees has physical locations in Florida, so that may be helpful to you.
At this point you will have a real non-PO Box address. This will allow you to severe the connection to your childhood home, and you’ll never ever physically visit the location, so security and privacy are a great bonus.
Get a postal form 1583 before you start. This allows them to handle and forward your mail.
Having a private physics address makes everything else on your list much easier to get and manage. I’ve played the game of using PO Boxes for a long time and there’s always hiccups and annoyances.
After the physical address is obtained, you should still have a PO Box, but it just shouldn’t be your main, permanent address. The best strategy is to forward your mail from the Personal Mail Box to the PO Box.
Within a short time, credit reports will likely show the actual physical address as your main address. Hopefully by that time your LLC’s have a new PO Box courtesy of the new Personal Mail Box.
If you decide to use Escapees in Florida, you’ll continue to appear as a Florida resident. However, if you use the other service, you can easily get to be a resident with a license in other states. South Dakota is very easy to obtain an ID for.
Back to the physical address and moving forward with the LLCs. Your next move may be to purchase an aged LLC for very cheap, (a couple retiring, there are websites that list these) then find an agent for all of them. Since they will all be under new addresses, you can shed some of the problems that shadow over them now.
It may even be beneficial to nuke LolCow LLC in favor of a new anonymous LLC. With the new personal mailbox and PO Boxes set up after that, why not?
There’s a lot of options once you have a real physical address. I consider your threat model to be medium-high. Not for real world danger to you physically, but for constant tracking and harassment. So it may be time to become a little more of a ghost (spooky time jackolantern.gif)
If you have trouble setting up the personal mailbox, hmu. I’ll help you out. It’s the most necessary first step for all of this.