“The most difficult thing in any negotiation, almost, is making sure that you strip it of the emotion and deal with the facts.” ~ Howard Baker. As this famous quote goes keeping the facts in place & documenting the key is to ensure that there is a fair & square negations which doesn't leave any bad after taste to deal with which can lead to relationship with the party getting strained. So driving facts facts & facts are the number 1, 2 & 3 golden rule to ensure the relationship between both the parties stay intact.

Focus on understanding the other party’s key concerns and interests. Shift the conversation toward common ground, exploring areas where both sides can benefit. Be open to compromise, offering alternative solutions that address their needs while protecting your core objectives. Maintain a positive, collaborative tone, and emphasize the value of continuing the relationship beyond the current negotiation. This approach can rebuild trust and create a path forward despite the deadlock.

To overcome a negotiation deadlock while preserving the relationship, reframe the discussion around long-term value to shift focus from immediate issues to shared goals. Use data to clarify any misunderstandings, ensuring alignment and mutual understanding. Offering a small concession—like an added service or extended trial—demonstrates goodwill and can reignite stalled talks without compromising your position. Finally, stay flexible and explore smaller areas of agreement to build momentum. Prioritize open communication, emphasizing long-term partnership rather than short-term gains.

Think about the possibility of using a third party intermediary. Preferably some one with influence, knowledge or power. Also, step back and check your counterparts perception of the situation. Question their version of events and look at the deadlock through their eyes.

Thinking long term benefits it is a great starting point. Sometimes the negotiation is focus on the immediate goal and forget that the relationship it is more important. Remember why are you partners and which are the things I have that you need and viceverse.