I just received mine and my son's passport today. I guess mine is easier because the biological father was never included in any of my son's papers such as birth and baptismal certificates.
When I was preparing our application, I really focused on being able to show that my son is an integral part of our relationship. I showed screenshot of chats we had that included or discussed my son or his activities, loads of pictures of my son and husband together rather than just me and my husband, and my husband's supporting letter included his "history" and relationship with my son.
I did not have letters from our paish, school, and pedia but I did include an affidavit of custody and support and solo parent certificate. If your husband is sending you financial support, you might want to highlight that this includes your son's school expenses, nanny, etc.
In my letter to the embassy, aside from our love history, I included an explanation as to why I have sole custody and responsibility of my son. This is the reason why I included my own work history, certificate of employment, and bank statements - I wanted to show that I have the means of supporting my son even before I met my husband. Just in case they question how I was able to support my son on my own.
I hope I was able to help. Yours might need more legal docs. Since you're annulled, you might be able to get a solo parent certificate from DSWD.
Thanks to everyone for all the usefull information that I was able to use in our application!
