The mailing addresses can be found on the instructions to the particular form you are submitting. This can be found at uscis.gov EKAETTE...

If me and my girlfriend get in a partnership through civil union will that affect my moms process for her residency/green card?

The marriage will not affect Mum's green card process. If you decide to file for your wife then the question of meeting the poverty guideline...

Affect on EB2 GC by Abolishment of Diversity lottery and possible upcoming major changes in EB5?

This is a bit speculative. You need to wait for the outcome. Goodluck.

How will request for more evidence affect my chances of getting approved for DACA renewal?

Perhaps a consultation with an immigration lawyer will not go amiss. EKAETTE LAWYERS. Goodluck.

The second extension may not be granted, how far are you in the process to become a USC? EKAETTE LAWYERS. Goodluck

How can I help my boyfriend stay in the U.S?

You may retain an immigration lawyer to represent him. EKAETTE LAWYERS. Goodluck

Can i travel to Canada suing advance paroled?

If you have already been approved for permanent residency you may make an INFO PASS appointment at you your local office to have your passport...

It is not wise to travel outside the country until your case has been finally disposed of. With admin closure the case can be back in the docket...

AOS under c9 will not lead to automatic renewal of your old EAD, processing time is 90days, assuming no delays in your AOS. Your first option auto...

FCPA question

This is not the immigration question contemplated by this forum. Goodluck.