right write

a friend and former colleague asked me if i could write something about the company that he just ventured into in their own website. i know this could be a way to improve my writing style but i dunno...it's a professional industry and i'm so bad in grammar. it is a professional approach and rhetorical studies to writing. also, i have to produce large a large amount of ink-brain squirting out of my nose. i know it is a privilege and also a responsibility. if this is on..any valuable tips? suggestions?