Like probably everybody who trains BJJ, my goal is to have a gym of my own one day. Unlike most people, I do not work a day job and I already have enough money to open a gym (I'm not trying to brag, I'm just laying out the facts), so it's a dream I can realistically get started on today.
So why not open a gym now? Because I have no idea how to run one. Don't know how to attract members, don't know how to keep the mats clean, haven't ever taught a class, etc.
Anyway, we all know there are gyms where you can train full-time to be a top competitor; does anyone know of places where you can train full time to be a teacher/gym owner? Obviously I should be joining an association, but I need more than a name and a logo. When you become a McDonalds franchisee, they give you a long course on how to run a McDonalds: are there any BJJ associations that do that, especially if you haven't been with them for like ten years already?
Or, if it doesn't exist already, are there any school owners who would consider a sort of internship arrangement? Like where I would come work for you for free/minimum wage (mopping, doing laundry, teaching a few classes, helping with marketing, helping with accounting, whatever) for a period of time, to learn the business (while also taking classes and improving my jits) and then go off and open an affiliate in another location?
It might help to include your geographical location and training history and rank. 
Appreciate the comment chitownbjj; I was worried that posting something like this might get a lot of negative responses, so I didn't want to make myself too easy to identify.
Location: I'd be happy to disclose privately if someone was interested in working with me, but I think the main point for the public forum post is that I have the resources and dedication to move just about anywhere in the US. Actually, maybe even overseas.
Training history/belt: About 3 years, blue, all at legit gyms. My ideal situation would be to work toward my purple while learning the business, and then, when I open, teach the beginner classes myself and hire a BB to teach advanced classes.
Three years in seems a little quick to be contemplating this. My impression from watching others is that the ones who are fixated on being an instructor, or getting a black belt, are not taking the time for their own quality development. Also, your mention of "all at legit gyms" is a red flag...how many schools have you been with in three years time?
But in terms of "what it takes" why don't you start by helping out at the gym where you train? A lot of mopping, washing, and paying bills is what's up.
Why not go to school to learn how to run a business and, if your professor is okay with it, ask them and other successful gyms about their business model?
It's great you are seeking this advice and knowledge before jumping in there alone.
But I do have 1 question: you've never taught a class? Why not start by offering where u r at?
Mind sharing your age?
Thanks for the responses all, I appreciate it.
To answer your questions: I've trained at 3 gyms, all in different areas, due to moving a lot. Never had any problems or been kicked out or anything like that :)
I'm 26 years old.
The gym I currently train at is fortunate to have numerous black belts and all classes are taught by black belts, period, no exceptions. I respect that and don't disagree with it per se, but it would mean I'm about 10 years away from teaching my first class (they also promote very slowly).
I'm hoping to find someplace that would consider working with a person who showed commitment towards making bjj their life, and had the resources and dedication to do it.
I don't want to sound like a jerk, but if you have black belts teaching every class you are one lucky motherfucker and you should just train your ass off.
THAT is a way to show commitment, the rest will follow.
When I started BJJ people drove 2 hours each way to learn from a purple belt.
There is no shortcut to becoming a surgeon.
There is no shortcut to becoming a legit BJJ black belt instructor.
Daniel/CGJJ - I don't want to sound like a jerk, but if you have black belts teaching every class you are one lucky motherfucker and you should just train your ass off.
THAT is a way to show commitment, the rest will follow.
When I started BJJ people drove 2 hours each way to learn from a purple belt.
There is no shortcut to becoming a surgeon.
There is no shortcut to becoming a legit BJJ black belt instructor.
I agree with you but sounds like he will be paying a BB to teach classes.
I know if I wanted to open a restaurant, if I wasn't a master chef I'd sure as hell hire one. And if things got tight I'd jump in there and play sous chef. Sounds like pfian is up for that as well.
Everyone who trains BJJ wants to become an instructor?? 
tbh, i think u should train really hard for the next year or 2. take lots of privates, u mentioned that u are more than financially secure, so a private every day wouldnt be an issue.
being 26, u should be more than capable in the physical sense, so perhaps even doing a personal trainer course to bolster your future gym business model.
as far as what business models/ franchise to look at. i would seriously look at the gracie barra school. i know they have gotten a lot of flack for the mcdojoism of bjj, but as u stated, u know nothing about OPERATING a bjj gym, let alone a fitness gym, or business for that matter.
ive seen and looked through the gb franchise manuals, online support systems as well as being a gb bb with over 10 years of training at the gb hq in sydney. ive seen it evolve from a casual gym to a full time bjj gym with multiple affiliate schools.
im sure the other schools, renzos, alliance, atos, etc etc have similar programs in place, but from experience in running a food retail business for almost 20 years, i can honestly say that the support systems and education that comes with a gb franchise are equivalent to many of the top franchise systems on the world (mcds, kfc, subway, etc).
also, hypothetically, u could achieve your purple belt, and then finance your dream of a bjj gym/ fitness gym and easily hire many of available black belts that would love a chance at making teaching bjj their life. your role could be the assistant coach for the beginners/kids classes as well as administrator, etc. ive seen this happen and its very doable.