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Your NDA can be a unilateral agreement, although must companies would prefer a mutual NDA so their intellectual property is protected. The NDA should not be too specific but should describe in general terms what you want protected. It can protect all discussion, documentation, product specifications, designs, business relationships, customers, suppliers, trade secrets etc. that you ( and the other company) will bring to the table.
You can specify the time frame e.g. 5 years. The NDA should be signed by management/executives of the companies involved. It does not need to notarized.
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Thank you for the information. If you were to draft this NDA what would the fee be?
Per the rules of this site and licensing restrictions I cannot prepare an NDA for you. What you can do is see if the company you are dealing with has an NDA that they use and modify that NDA for your use. If they are unwilling here is a link for a good template to use.
If you want me to look at after you completed the document you can open another question and indicate it is For Jack R. I can make suggestions for what is missing or what concerns exist.
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