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Generally, the basis for granting an annulment of a marriage is fraud, inability to consummate the marriage, that a party to the marriage is a bigamist, has concealed a criminal past or concealed the fact of a communicable disease or other grounds which the Court recognizes as a valid basis for the granting of an annulment. You mentioned a situation you believe is fraud, so you might want to go with that. But, hopefully, you didn't give him the info for him to file taxes with you as joint filer. There is some reason he is doing that, and if he lies on the taxes, and you are on the taxes, you could be liable as well.
Get out of this ASAP. Good luck.
I will give you some general examples of ways I would write these things down. You want it to sound a "bit" business-like, but also honestly list the ways he lied to you and you ended up "screwed" because of it.
"I was defrauded by Mr. XXX in the following ways:
Mr. XXX agreed to move to Tucson after the marriage, which would have been economically beneficial to me .......
I gave up my plans to ..... and relied on the promises made by Mr. XXX to my detriment.....
It was agreed that Mr. XXX and myself would pool our resources and that we would live together as a married couple, but almost immediately, he told me that was not true....."