While you might get some helpful insight here, your best source of information is going to be your lawyer (or preferably practicing lawyers in both states). Building and zoning regulations can vary a lot even between towns within the same state and getting a lawyer who is familiar with those regulations will help you narrow in on a location that fits what you need.

The most you can really get from Reddit will be a general idea of "X state has less regulations than Y". That might be helpful for you, but certainly should be taken with a grain of salt and backed up with more reliable information sources.

A hypervisor is (generally) a Linux OS that comes with tools set up to make it easy to host other operating systems within it. So if you were to take that approach, you would probably have a separate container or virtual machine for each server that you wanted to run, then access the hypervisor (usually through a web ui) to configure and start/stop the game servers.

I have an old PC that I have been running as a server for around 5 years now and it has been a really fun project to work on in my free time.

To answer your specific questions:

• No, you generally would not need a gpu (other than initially getting things set up if your cpu doesn't have integrated graphics)
• You don't need a specific CPU, but if you are planning on running multiple servers simulatenoesly, then a higher core count would certainly be helpful
• The size of storage you need will be super dependent on which servers you want to run, so it would be a good idea to look up the server install sizes for the games you want to run. That being said, it is generally pretty easy to add more drives later if needed

For some general things to think about:

• You may want to look into running a hypervisor (an OS designed to host other OSes in containers or virtual machines). If you are going to be running a number of servers, having them hosted separately on a hypervisor can make it a lot easier to take some up/down without impacting the others. Personally, I run proxmox as my hypervisor, but there are a bunch of options out there
• It is also important to consider the energy costs of running a server. It might surprise you how quickly an atound the clock server can eat up power, so just keep in mind that you might see some changes on power bills

Hope this helps! It's a fun hobby, and I hope you enjoy it.