[rotoole]

I would be transparent. Ask for and negotiate for what you want _up front_, not after the fact. Back it up with evidence based on your other offers, and make it clear that your willing to walk, rather than compromise for something less.

Why treat yourself like a slave for partners who don't care about your interests?

Remember, your company's lawyers are not your lawyers. They are not looking out for your interests, rather the company's interests.

It sounds like you should have a lot of leverage here to get what you want though. You need to negotiate with your employer, or get an agent to do it on your behalf.

They way you describe it sounds like your being sold down the river.