If you wish to bring a character to your first session, rather than having one given to you, follow these simple rules. You can download character sheets from the Wizards of the Coast website.
Use only the Player's Handbook.
Use the Point Buy method for generating statistics as presented on page 13.
Generate equipment from your class and background, not by rolling for starting money.
"Variant Human" is allowed.
Evil alignments are not allowed.
So long as you're building characters between levels 1 and 5, little changes.
Use the exact same rules you did for your first character (PHB only, point buy...)
Starting at second level, characters may bring additional loot. Use the rules for loot allocations based on level.
Loot is given in the form of tokens handed out after each game.
Create a named "tie" to the Forgotten Realms.
Please note, these rules are not to limit you, they are to make the DM's job easier. Not every DM wants to know the rules from every book, so having these rules allows us to make their job easier.
Explore the Forgotten Realms!
The Forgotten Realms await! Gryphon Guild Ventures takes place in the Forgotten Realms. DMs are expected to create adventures in the realms, and Players are expected to create characters that are part of those lands. Your character should have some sort of tie with the Forgotten Realms, a named location they hail from, deity they are tied to, etc.
Take a moment to go over the Setting section and see if you can find something to tie your character to the world they will be adventuring in. Create at least one named "tie", a place you're from, a deity you seek to emulate, lands you've traveled, etc.
Starting at 6th level, players are allowed to build characters with any hardback book save those that are set outside of Forgotten Realms.
DM has full discretion to disallow any rules outside of the PHB. A wise player will have a PHB character also available if they intend to do something "extra" with a character.
"Monster Races" from Volo's are not allowed. These are the ones that are not fully fleshed out.
Flying options (such as variant Tiefling) are not allowed.