Justyna wants to marry an American citizen for green card (goal) because: 1) She wants to stay legally in the USA, 2) She want to live American Dream (motives). If she doesn’t find a candidate, 1) she would have to return to her country where there are not jobs prospects for an art school graduate or 2) if she finds a wrong one, he may report her to INS and she’d be either imprisoned or deported (external stakes). She is ready to commit the fraud as she always lies (and later finds hundred excuses it was right thing to do) as she’s too pride to admit she may fail (flaw). If she lies again, this time about her true feelings, she will lose the love of her live and HEA (internal stakes).
I’m writing the story at first person POV, so I only did this exercise for my protagonist 🙂