my Employer forcing me to assign addendum

[USworkerx]

I am working on H1B VISA, My employer XYZ forcing me assign addendum which says, I need to work with them for three years, if I resign within three years then I need to pay them $20,000, I asked them to send addendum in email and they said they do not send any electronic copy. I joined in that company in Oct'17 and my current visa expiring in Feb'19, right now they need file my H1B extension, so they forcing me to assign above addendum before they file H1B extension, can you please suggest what should I do now. Please find attached addendum

[JaiTrump]

This is quite common with some indian consulting companies, if you want to continue being on H1, I don't think you have an option or just report such things to USCIS

[NotAnAttorney]

Even if you say I won't sign they are not going to do anything to you.

[criticalpath]

Are you less than 5 years of total IT experience , some companies do this to create a fear factor among junior level employees. Better don't sign it.