Below are my personal views and opinion:
1. After wedding, need ko bang magrenew ng lahat ng docs ko? (passport, gov't ID, NBI/police clearance) Kailangan ba updated na status ko from single to married and need ko rin bang pachange of name (since mag aupdate ako ng status, isabay kona change of name ko?)
It's really up to you. In my case, I decided to keep my identifications as they are except NBI clearance as I was told the married name must be shown upon renewal. Got my passport renewed today and I also kept my maiden name. On the application though, my status showed married and provided DFA a copy of our MC from PSA and a copy of certificate from CFO.
2. Related to question #1, my signature, obvious kc sa signature yung last name ko as in basang basa mo sia, need ko bang palitan just in case susundan kona yung surname nia?
I think whatever identification you will be sending for the application that shows your signature, just make sure that any or all forms that you will be signing matches and looks the same signature as your identifications.
3. NSO/PSA MC, kaya ba ng 4 weeks bago sia umalis? target ko kc dala na nia complete application package ko pagbalik nia sa Canada para wala na kming iniisip pa at para i mamail na lang pagdating nia dun.
MC-PSA copy may be expedited if you will personally take care of the registration right after your wedding. On the day you will go to your Local Civil Registry, ask about getting your MC for advance endorsement to PSA. Ask also about getting a SECPA (Security Paper) copy. You may not be able to have the PSA copy yet in time for your hubby-to-be to take whatever he can take when he leaves, but a SECPA copy should be good enough if you will be able to have your IMM applications completed before he goes back to CA. This assuming that you will get married on the 2nd week of his vacation. I say 2nd week because his 1st week will for sure be spent completing the requirements needed for your marriage license application. Number 1 item is the Certificate of Legal Capacity to Contract Marriage. He can only get this at the CEM and would suggest he takes care of this as soon as he arrives. Notarial services at CEM is only available from 10am to 12nn, Monday to Friday. He will be able to get this on the same day.
4. How about ung size ng envelop? malaki po ba, kc feeling ko madami daming supporting docs namin since highschool (first meeting namin) hanggang sa kasal, honeymoon etc.
You'll have a better feel about the envelope that you will be needing once you have completed everything. You may also view the other thread started by one of the members here with codename Pelipeli. Try typing on the search box "How do I organize our application" or, "pelipeli" so you get to see the link for that thread. This thread does not allow link. Otherwise, I would have pasted it on here
5. Do i need also to attach my diploma in college? since may question dun about education
You will see on the Guide Kit 3905 which Identifications, Certificates, etc must be sent.
Feel free to PM me if you have more questions