Although the Catholic church likes to think it never changes it actually does quite often. I have gone through the annulment process both as a non-Catholic and as a Catholic and it really more paper work than anything. Also, I was afraid too that I wouldn't be able to have the Eucharist but my priest said that is an individual thing and not a blanket "rule"(I hate using that word but I can't think of a better or different one). Yes, the Catholic Church is also beginning to realize that "one size/whatever doesn't fit all!".
I converted thirteen years ago and it gives me what I need spiritually. I came with quite a mess in terms of what I had to have done to "get things right with my marriage/remarriage/divorce" situation but the annulments are nothing to fear or be concerned about. There will be some questions they will ask but mostly they just want to know the 'state of your soul". As for confession, I came into the Church at an age where I had lead "quite the life" so trust me if God can forgive me, He can forgive anyone!! Think of an annulment as absolution. I truly felt that once my "mistakes" were annuled I was set free. I really truly mean that. Yes, a child was involved but she was NOT annuled, the marriage was.
I think whomever you speak with will be touched by your love of the church and wanting to have that continuity. They definitely like willing participants. Willing is the key word. One thing the Catholic Church loves is people who WANT to be there! I believe the church feels angels in heaven are singing when we are happy to be there!
Good luck and God bless with keeping that continuity in your family's life. With the way the world is today, we all need stability and security, I feel.
My Mom's name is Peggy. She is alive in spite of some really horrible obstacles that have come across her path. It is a testimony to her doctors, nurses, her strong will to live and of course her Creator.
Thank you all for such love.