I have built a Database in Access and I wanted to know
what would be required to sell it to other users.
A willingness to buy on their part is the main thing... <g>
If the user does not have Access installed (of the same or a later
version than the one you used to create the database), you should
purchase the Office Developer Tools package from Microsoft. This lets
you create an access "Runtime" - a royalty-free Access executable with
no design tools, which can be distributed with your database.