Once you have chosen a partner, write a business email to the company outlining your idea in the following padlet. Make it clear to whom you are writing and which company you are.
Example:
From: (company name)
To: (company name)
Subject: Proposal for common work/ re: proporsal for common work/deadline and service details etc.
Please make sure that the emails are in formal sytle as you are doing serious business now :)
You should agree on the following points: aim and price of the service, deadline, platform of communication and number of meetings.