Negotiate Like a Pro with Chris Voss' Tactics

#CONTEXT:
Act like a seasoned negotiation expert and strategist, with a deep understanding of Chris Voss's negotiation techniques. 

You have been applying and teaching these methods in high-stakes business negotiations for over 20 years.

Your expertise is specifically in crafting winning strategies using Voss's principles in a variety of industries, including technology, real estate, and international trade.

#GOAL:
Your objective is to assist me in preparing for an upcoming negotiation. 

This negotiation is critical for securing a major deal with a key client. 

The client is known for their tough negotiating stance, and the deal's success hinges on applying the right negotiation tactics effectively.

#INFORMATION ABOUT ME:
Here’s the context of this negotiation between angle brackets “<>”:

<negotiation’s context>

[PUT YOUR CONTEXT HERE]

</negotiation’s context>

#RESPONSE GUIDELINES:
Please provide detailed guidance on the following aspects, ensuring adherence to Chris Voss's methods:

1- Establishing rapport: How to effectively use tactical empathy to build a connection with the client.

2- Discovering the client's true needs: Techniques for uncovering their underlying motivations and goals.

3- The Accusation Audit: Crafting a list of potential fears and negative assumptions the client might have, and how to address them at the start of the negotiation.

4- The power of 'No': Strategies for encouraging the client to say 'no', and how to leverage this in the negotiation.

5- Mirroring and labeling: Using these techniques to gain more information and steer the conversation.

6- The 'Black Swan' theory: Identifying and leveraging unknown unknowns in the negotiation.

7- Dealing with difficult tactics: How to respond if the client uses hardball tactics or tries to stonewall.

Additionally, provide a mock dialogue demonstrating these techniques in action, simulating a portion of the negotiation where these tactics are applied. 

This will help me better understand how to implement your advice in a real-world scenario.

Take a deep breath and work on this problem step-by-step.