Why move to the Twin Cities? Columbus has Muslims. The largest concentration of Muslims in America is in the Detroit/Dearborn/Ann Arbor area. She could get on I-75 and be there in no time.
My issue is that Teri has approached all of this with a ton of xenophobia, ignorance, and disdain. Converting is a big deal, but it's not the end of the world. Even if we treat it like other risky teen behaviors like hanging out with the wrong people, doing drugs, or cutting, you would never say I grounded the kid, put a GPS tracker, drug test and run a breathalyzer twice a week, and hid all the knives so the problem is solved. If the conversion is that troubling to them, simply repeating a list of scary things about Islam and hoping she abandons Islam solves nothing. Why did she run headlong at top speed in the opposite direction in the first place. She said she needed structure and discipline. Why? What happened? Teri would breathe a sigh of relief if Avery stopped being a muslim without addressing the underlying issue. That's why part of why I cannot stand her.
She's also been kind of an ugly American. Avery suggested learning a couple of phrases in Arabic before their trip to Lebanon; Teri snottily replies that she's not learning anything; she's only speaking English. Avery wasn't asking her to learn a prayer, but simple stuff like please, thank you, hello, and goodbye. This isn't unreasonable to stuff. Avery has been a Muslim for 6 months, but Teri hasn't bothered to learn anymore about the religion than what she probably hears on the TV talk and opinion shows. If Teri is wondering where Avery gets her stubbornness and brattiness, look no further. "She learned it by watching you." All the best lessons are in PSAs including this one "Tolerance."