All I have to show is an electronic (emailed) copy of the divorce paperwork. We went to the on-base legal office where it was notarized - FOR THE $300, not the $100. I'm afraid he took the $300 paperwork I signed off on and just took out the page I signed and had notarized, and amended the paperwork with his lawyers to have it say he only has to pay $100 - and stapled my signature to that. But I received nothing signed or notarized until I was served the finalized papers.
What strikes me as shady is that the paperwork I was served today has 2 different types of papers - one the judge stamped and signed off on (originals), and the rest - including the settlement agreement - all have the "copy machine flecks" on it, the little flecks and dots that show up from using an old or dirty copy machine. The 3 pages stamped by the judge are clean.
If he indeed swapped out papers, is this considered forgery? Can I sue him or take any legal actions? Can he be sent to jail for this?
If he swapped papers, it would be fraud, but probably not forgery, but that wouldn't really matter. It is probably also contempt of court.
It comes down to what you can prove. If you have a copy of the entire document with your signature and he changed it, then you go back to the judge with your evidence and ask for the judge to reinstate the original agreement. You'll need to do it quickly - there's usually a fairly short time limit to appeal a divorce decree.
I don't know what the cutoff is in Guam so I can't say if it's a felony or misdemeanor, but I think you're barking up the wrong tree. First, if he goes to jail, you're not going to get anything. Second, you're going to invest a lot of emotional energy and time over the matter.
Ordinarily, I would suggest hiring an attorney to file the appeal and ask the judge to force him to pay your legal expenses. However, since it's only $2,000 at stake, you have to decide how much time and money you want to invest. You have to balance that against the fact that you probably have to appear in Guam to file the appeal. Paying an attorney may be less expensive.
OR, you could go to your JAG office with all your documents and ask for their help.
OR, you could present him with the information and tell him that you're going to the JAG office if he doesn't give you the extra $2,000. Since he's likely to lose his career if you turn him in to JAG, he may comply just to stay out of trouble.