Just making sure, but my new wife is the person that signs the I-765, right?

Humbly,
Ramos

She's the one getting the EAD...so yes.

The alien applying for EAD is who signs. Or in your case the Canadian citizen signs.

Thanks a bunch

Trying to get all this filled out and ready to mail by monday.

Ramos

Do it before then, needs to be post marked no later than this Saturday, July 28. If you mail it Monday you will be paying the higher fee.

Also for K-1 DO NOT file for EAD before filing for AOS, the code for K-1 EAD (a )(6 ) will result is an EAD card the expires the same time as I-94 card (90 days from entry) A USELESS CARD.

File for EAD with or after filing for AOS, using code (c )(9 ) this results in a 1 year EAD card.