Hello there,
Since I am new here I will try to reach you at the following wat:
For this project I will develop:
1. Website, simply for users but fully functional, responsive
2. Web app for users where they can see/update/delete signatures
3. Admin panel as a backend for you where you can administer signatures, users and website content (cms)
4. Chrome and Firefox extensions which will let users to post signature inside of email compose window.
And one benefit more, I will not create milestones, so you will pay me everything when I finish work for you.
First version you can expect no later than ten days.
Hope to see you inside of project,
Jelena
Note: I am not really from Puerto Rico, but since you will pay when I finish everything I felt free to contact you