Though I've not found a "de-legalese-r" site on the web, I have found Unsuck-it, a website that takes business-speak and makes it, well, less sucky.
Incentivize: In order to meet our phase 1 deliverable, we must incentivize the workforce with monetary rewards.
Unsucked: Encourage or persuade.
Low-Hanging Fruit: Our budget’s tight on this one, so we need to go for the low-hanging fruit first.
Unsucked: Easy goal.
Synergy: We are actualizing synergy amongst team members directly related to the project.
Unsucked: Working together.
You can search for terms, and even generate an email to the offender who used the word. Now, we just need the legal version!