I don't know if you would meet the jurisdictional requirements to file for divorce in the United States - it sounds more like you vacation here than that you're actually domiciled in the U.S.
If you file for divorce in Iran, but can't agree on how to divide property located in the U.S., you may have to file an ancillary action in Michigan to divide that property. I can't even tell you if Iran awards alimony - I suggest consulting with a lawyer in Iran.

