They will ask for all the LLC papers, business Lic etc at your face to face meeting, this will help:
Everything you need to get your FFL is right on ATFE’s web pages.
Start here: ATF Online - Firearms - How To - Become An FFL
You can download the FFL application in PDF format, you can type it, save and print it;
Read through the application form to see if you legally qualify for a FFL, basically if you can legally purchase a gun, you qualify. Also you must have a place of business with set hours of operation. You must plan to make a profit.
You also need certificate of compliance form, you can’t save it, so when typed, print it out;
Here are the instructions for the FFL application;
ATF Online - Forms - ATF F 5310.12 Instructions
You also need to 2 fingerprint cards; you can order them from ATF here:
Distribution Center Order Form
When you drop off copy 3 of your FFL application to the CLEO (Chief Law Enforcement Officer), they may be able to do your prints. The CLEO is usually the county Sheriff or the city Police Chief.
Mail your completed application, certificate of compliance form, print cards, pictures and fee to:
Bureau of Alcohol, Tobacco, Firearms and Explosives
PO Box 409567
Atlanta, Georgia 30384-9567 USA
Expect a visit from an Industry Operations Investigator (IOI), who will inspect your place of business and go over regulations and paperwork with you. He or she will want proof that you can use your proposed place of business for business.
Another useful ATF dealer site, includes FFL newsletters etc;
ATF Online - Firearms - Industry
Lots of good downloadable references from ATF here:
ATF Online - Publications - Firearms