Added PRD for real estate B2B proposal

[Rashampreet4114]

---

name: Pull request
about: PRD for real estate B2B discussion
title: ''
labels:
assignees: ''

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Is your pull request related to a issue? Please tag.
No

Describe the solution you have implemented
Not Applicable

Describe why alternatives you considered are not optimal
A clear and concise description of any alternative solutions or features you've considered.

Additional context

• The PRD focuses on streamlining the broker-client interaction by automating lead capture, qualification, routing, and follow-up workflows.
• Includes risk analysis to ensure realistic planning and proactive mitigation.

[tusharchou]

Good morning