Best Practices for pushing out and sign off of a document

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Hi all!

I am trying to figure the best practice for having users view a document and after reviewing requiring them to "check a box" to confirm they have done the following:

1. read the document,

2. signed the last page 

3. returned the signed page along with another piece of information back a department within our organization.

I currently use and am familiar with Assignements. Is the best practice for accomplishing this to assign the document?  I am unsure of how to accomplish having them "check a box" to say they signed the document and returned it to the correct department.