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<p>Again, I do not know enough about Michigan rules, but I am surprised that schools can set make rules of their own (unless state laws either given U of Michigan some extra rules or they allow schools to interpret their rules differently). Every state I have encountered, they always refer to one state law. Of course one school might be a little flexible compared to another but they always claim to base their interpretation on the same law. Again Michigan may be different, and so I may be totally off base.</p>
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<p>If that is the case, then I am not sure that you are going to be able to get in-state tuition unless you go to Michigan, take a gap year, work earn money and then apply. Here are the constraints.</p>
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<li> Just because you have a green card does not give your mother the right to work. She has get a visa to work like a H1 visa. She can come to Michigan as tourist but cannot stay for too long.</li>
<li>Does she have the skills to get an employee sponsor or some other type of sponsorship for a green card. Again those processes takes time.</li>
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<p>Your situation is a lot more complicated then a mere “I need in-state tuition”.</p>