Even if your company doesn't sue you immediately, the fact that the intellectual property might be of questionable ownership can also mess up fundings or acquis

Even if your company doesn't sue you immediately, the fact that the intellectual property might be of questionable ownership can also mess up fundings or acquisitions down the road. If a company is looking to buy you and realizes that there's a chance of BigCorp claiming ownership of some piece of your IP because you signed a bad employment contract, it's going to be one more reason for them to say no to the deal.