notice of no marriage or copies of court papers

I'll start off by saying yes, I know I'm an idiot. That being said, here is where I could use some help.

I live in Canada. I married my 'husband' 2004. He moved to Canada late 2005, we were separated early 2007-2008 then were back together a short time after our son was born 2008 and have now been separated since early 2009. He moved on, had another kid and is with that woman now (one of the MANY he cheated with). However, in a bid to win me back in late 2010, he decided to come clean with everything. One of those things was that we were not legally married as he was still married to his first wife when we wed (they legally divorced in 2006 from what I understand). I didn't care because we were over but now we are finally filing for the divorce as it's the easiest way to clean up the mess but he is now fighting for custody of our child (I had sole custody before on a separation agreement) and he is also fighting for proceeds of a condo I sold in 2010. He is not entitled to this because we were not married and do not meet commonlaw status where we live but I think he needs money to sponsor the woman and kid he's with now - they are Mexican and living her illegally.

Also in 2010, his wife who lives in Puerto Rico (who thought they were back together) found out about me, our son and the other woman and their son and she got ahold of my 'marriage' certificate and went nuts. She brought him up on some sort of charges in the DR (bigamy?), went to their house and cleaned out everything except one light bulb that she couldn't reach and dragged him to court for the purchase price of the house they bought together. He has been back there fighting those charges on a couple of occasions since 2010.

My question is how can I either obtain their divorce certificate to show we're were not married OR get a paper from the Dominican courts saying he and I were never legally married OR copies of the charges he was/is facing?

I never registered the marriage in Canada and all I have to do is show the judge enough to give him doubt that marriage never exsisted and he should be able to say it is null and void here giving my ex very little legal ground and it will be nearly impossible for him to sponsor anyone in the future.

Thanks for any advice.

Thank you! He is definitely a pro and when I told him he had no way of winning since we were not married, he just said I have no proof and I should just do what he wants. I want to expose it all and go on with my life. I thought this was all over but he is definitely a controlling one (he hired a new lawyer less than 24 hrs from us signing off on everything).

Sounds like it may not be too hard to obtain. I did PM Fabio but may call his office directly. I know my ex's name, birthday, cedula #, old passport #, address of the house but only her name and approximate date of divorce..everything happened in Puerto Plata..I hope that is enough. I think the ex in PR would be happy to help but not if I called. Someone from there calling would probably have more luck especially if it knew he would be back in court somewhere.

I mostly just cautioned him on one occasion that he needs to be sure this is a road he wants to travel down. He does not know I have begun trying to find a way to prove it. Calling his ex is what I want to do but worry she will tip him off (or their daughter if she hears/sees something) and that's when he'll get his little minions down there working on keeping it a secret.

There is a marriage certificate between him and I as we did have a wedding. He got a declaration signed and notarized saying he was single - never married so there was no need to question anything at that time.

Yes, that is the same here. Although it is low on their priority list. If/when I obtain the copies I need from the DR, I plan to submit them to immigration also and at least I've done my part and they can do with him what they want. He is also committing fraud here by being on workers compensation and working under the table so it is likely if he tries to threaten me or takes this too far in court, he is in for a big shock when he has to repay them too and gets his income tax reassessed.