US Immigration from Philippines

So my wife completed the naturalization process back in December and is now a citizen. My step son turned 18 in April so I believe he gained citizenship from my wife as he was 17 at the time she became naturalized. It is my understanding that even though he is a citizen he still needs to file an N600 to get his citizenship certificate. I was not able to find a guide for this process so I have a few questions.

Since he is now 18 he would technically have to be the one filing the N600 correct? But I can still help him with it right?

He can still get a US passport without a naturalization certificate correct? Is it better to get his passport right away or after he completes the N600 process? Or does it not matter?

I have read that he might need a naturalization certificate to enroll in college and/or to apply for financial aid. He is planning on enrolling in tech school next January. How long does the N600 process take and what difficulties might he face enrolling in college before completing the process?

What are all the steps of the N600 process? I know the first step is submit the N600 form along with fees and relevant evidence. After that what happens? Does he need to go for an interview? I have read that sometimes it is required and sometimes it is not. What criteria do they use to determine if an interview is required? What does the interview consist of? Will he have to do the civics test and everything else my wife had to do? Will he have to attend an oath ceremony like my wife did?

As far as fees go it looks like there is a fee waiver if you are low income. How would his income be calculated if he doesn't make much money but lives with my wife and myself? Does he have to count our income or part of it as his or would he qualify for a fee waiver as he doesn't currently earn much money (he just finished high school and just works part time)?

I am sure I will have more questions about the N600 form its self as we sit down and work on it this weekend. But those are the questions I have for now. All answers are appreciated. You people have been the number one source of information as my wife, step son and I have navigated the process of obtaining visas all the way up to naturalization and we wouldn't have been able to do it on our own without this website. I believe this will be the last step in our process (until we look into bringing my in laws to the US).

Hello, I have a big question and not sure it can even be answered here? I have a filipina girlfriend for 2 years now and have been there for month long visits 3 times now... the last trip we decided to get married... I came back to the u.s. and started to gather the documents needed... I had all but forgotten my criminal history... I got my FBI file and my state history.. I looked through it and realized I was in trouble with the process...I had a bad spell in my life 25 years ago... 3 dui.... no felony and a domestic and simple assault... I know it sounds bad but I didn't hurt anyone.. but yes under the letter of the law I was guilty... I slapped a guy in my early 20s and during an argument I grabbed my wife..

My question is... do I have any hope of approval for the k-1 to bring my fiance from the Philippines to the u.s.?

I am not the same person I once was and have had a good productive life since... 20 years at the same job.. I own a home... it's the only issue I have.... my past.

Filed for the AoS earlier this year w/ the EAD, but opted to not file for the AP because my wife and I decided that we didn't anticipate needing to travel for the next year, therefore it would be best to save the money than spend it for AP.

Well my work decided to schedule a work trip to Mexico in September and my wife really wants to go, which based on AoS time estimates I don't think is possible, therefore I was thinking it may be worthwhile to file the AP today, but unsure how common it is for AP to be approved within 3 months of filing date. I know every case is 'different', so no definite way of knowing, but really just wanting to know if it's very common, common, uncommon, rare, or very rare.

Key Dates:

• AoS Filed: March 24
• Biometrics: Apr 21
• EAD Received: May 8
• SSA Appt: June 5
• AoS Appt: PENDING

We received receipts for everyone like this today. Cards have not been received yet, They will not mail them to PI will they? Or are they for the visas mailed in October, but why are we just getting the receipts now?

Please see the attached receipt for your payment of the delivery fee. This is for the US visa/docs delivered by LBC.
This e-receipt is for your reference only.

My fiance is missing the Certified duplicate of the I-129F form. How do we request a copy, and how long does it take to send it?

Can they send it via email?