I live in Illinois sans Cook county and vicinity. I started working on my FFL in July 2015. Posted my application, got my business license, in December. I was told it would take me about nine months to a year to get my FFL from the time I put my application in. The end of January 2016 I had the BATFE sitting in my dining room. I had done my homework, I had anticipated their questions. Literally, one of the interviewers said to the other "why are we here, seems like he's interviewing us instead". My FFL was issued beginning of March.
Since then its been slow. Frankly, I am not complaining one bit. I've advertised, met with veiled animosity from local "good ole guys" and stalagmites of the business. It hasn't been all fun and guns. I've spent a considerable amount of time, building and money meeting what the wholesalers require before they grant you an account. You MUST prove you are a brick and mortar business. That means images of the inside and outside of your location, plus posted business hours. Not just a kitchen table. That means security systems, displays, registers, the whole lot. Also need a separate checking account setup for your business as most only do ACH withdrawals, no credit cards. And do not forget about insurance for your inventory and your business itself. They have their own criteria. LLC your business at least or you could be risking all you own personally as well as business related.
IF you get a couple of wholesalers to toss you a bone, all the better, but you will, I repeat, WILL be expected, by your customers, to compete with the likes of BUDs, et al. and online prices. I can tell you now, that what those guys buy guns for is not what you will see your price is as a lil guy dealer. Been there, done that, learned well.
Also be prepared for the BATFE to come to your home [if your business is incorported in your home] or business whenever they seem fit and peel through all of your records you must keep - 4473 paper docs, and your bound book, etc. They will also inventory your safe contents, I recommend keeping your personal and business inventory in separate safes altogether. If something comes up missing during an audit which should have been reported within 24 hours of discovery, the BATFE get itchy. you get cited for any infractions and they can take your license or other unpleasant actions. Having an FFL is not to be taken lightly like a drivers license.
I do NOT want to dash your dreams. Not at all. My whole point is that this process you ask about has been, in my experience, an arduous one. Rife with responsibilities that the government has imposed on all of us.
I hope the best of luck for you and welcome to the club!!!