I am going through this same process, sending a filled out im5710 with a cover letter, old and new passports, and copy of my permit (not the original?). Is the $150 fee required as well?
when extending the PGWP with the IM5710 after renewing my passport, do I need to submit the fee again as well? Do I send in the originals of my old PGWP or just a copy?
For this type of situation, in addition to the IM5710 do you need to submit the fee as well when extending the visa to it's full 3 years? do I include the original of my old permit or just a copy?