Signed Tab Does not Appear in Signature Field Properties Window of Acrobat Pro DC

If I understand Adobe Sign correctly, it kind of works like Docusign in that you fill out the form and when you're ready to have it signed, you send it using Adobe Sign. However, this will not work for me. I have to create a fillable form as a template that gets sent to our consultants to fill out and sign. No one signs the form when it is first sent out. Once it's signed by the consultant, it gets sent to our project managers who make sure the information is correct. Once it's finalized, the PM needs to send it to a final reviewer who signs it and the document should get locked at that point. To use Adobe Sign wouldn't the consultants have to have Adobe Sign? If so, that's not going to work.