The phrase "negotiation leverage" means having an advantage or power during a negotiation. It gives you the ability to influence the outcome in your favor by having more control or better options than the other party involved. Full definition
Home sellers lose a lot of negotiation leverage after a home has been on the market a week or 10 days. (realestatedecoded.com)
Unless you are going to file a lawsuit, you have limited negotiation leverage. (accidentvalues.com)
Making trolls responsible for the costs of their discovery requests that go beyond the core documents needed to decide most patent issues will stop unreasonable demands made for negotiation leverage. (unitedforpatentreform.com)