system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] I am a muggle that's aware of the wizarding world. If I want to open a business in, and possibly live in, a wizarding community, such as Diagon Alley or Hogsmeade, what would be the process?

When we were teenagers, I was visiting my cousin's house one day when I caught him using magic. I had crashed my car and he said he was going to have his mechanic friend take a look at it, but when he thought I was sleeping, he went into the garage and used a Reparo charm to fix the damage. The problem is that I walked in on him mid-spell. His parents must have had some connections at the Ministry of Magic, because they successfully lobbied for me not to have my memory wiped. Anyways, my cousin filled me in on the wizarding world so I know pretty much everything now.

Now that I'm an adult, I have realized I want a change of scenery. I have a boring 9-5 job as a dish washer in a restaurant. I really want to be a chef though, and I have an idea for setting up a business selling muggle snacks. My cousin is pretty well off now, and is willing to front me the Galleons to set up my business as well as buy a house/apartment in the community of my choice (since I don't have wizard money, of course).

What exactly is the process I should go through if I want to move into and start a business in one of the wizarding communities? Are there wizard contractors to build the business, a permit process, or anything else I'm missing? I'm hoping it won't be just a flat out "no". Since the MoM allowed me to keep my memories from all those years ago, it seems like there's at least a possibility.
gpt
The law is pretty clear, unless you're a Squib (which is entirely possible since you're related to a wizard, unless they're a muggleborn) you can get fucked, mate. Being allowed to remember magic at all is likely as close to the wizarding community as you're going to get without marrying into it, so if you're really desperate ask your cousin to set you up with a nice witch/wizard.