[theredknight_x]

the requirements to become a red wizard, or an apprentice, is for 3 meta magic or item creation feats. since wizards get scribe scroll (item creation) for free at 1st level then really you only have to choose 2 more, unless you are attempting to make a sorcerer a red wizard... not sure if that is doable, but there is cannon to support that somewhere i am sure.

more info can be found here

also be sure to choose a school to specialize in at character creation.

Sorcerers can't specialize, and by definition can't be Red Wizards.

Besides, Thayans for the most part despise Sorcerers. When found, they're screwed. Best plan for someone with Sorcerous blood in them is to leave Thay or hide VERY well.

Examples are all over the source material. EG. PG 205 of Forgotten Realms Campaign Setting on the bottom right of the page, where the description of Thay starts states:

"Those whose talents run to sorcery channel their talents into wizardry, suppress them, or leave the country. The Red Wizards despise sorcerers, who don't follow the carefully regimented system of magical schools."

Beware, bastard magicians :)