"In the event that Client omits the credit line, Client agrees to pay an additional fifty percent of the total fee OR to remedy the omission within a reasonable timeframe."
The fact that your contract negotiations are taking a long time may mean you have more power than you otherwise might. Your clients may not want to start from scratch with another artist since there are deadlines to meet, so they might be more inclined to accept your (reasonable) demands.
*How do you all handle the portion of the contract that deals with "Announcements/Promotions/Sharing"? I'm fine with not broadcasting work that isn't complete, but when it IS complete - and the exhibit live to the public - I'd like the ability to announce the project on my blog, or post images in my personal online portfolio. As it stands, the contract verbiage lumps that kind of action under - "NO SHARING OR POSTING, unless you get the institution's written consent". Is that normal?
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