Thanks everyone for your advice. The client has supplied all of the fine print for disclaimers on the ad spot. Does anyone have any idea how long this needs to be on screen? Also, what about font sizes? Any thoughts? Thanks
You need to keep it up long enough so that the company can defend themselves legally as to whether they made an effort (due diligence) to inform customers of "the catches" upfront.
Email the client and ask them how long they want you to keep it on screen. Get the their response in writing, then put the graphic up for as long as they say to keep it up.
It's not really a creative decision, it's a legal one, so they should make the call. If they ask for suggestions, feel free to offer advice, but make sure they give you their final decision in writing.