What documents should I save to use if a dispute arises?

Save the following documents:

(a) all agreements with your brokerage firm;

(b) all documents you provide to the broker or the brokerage firm, showing your investment objectives, investment history, and net worth;

(c) all monthly account statements with all brokerage firms;

(d) all confirmation slips (whether you "buy" or "sale" securities). You also want them for tax purposes;

(e) year-end transaction and portfolio summaries; tax returns for all applicable years; and letters between you and the broker or brokerage firm, including all correspondence reflecting complaints or any wrong doing;

(f) all other mail or letters sent to you or sent by you to the brokerage firm.