Winter Falls of the Twin Willows Trilogy, by Nicole Maggi, focuses around a girl named Alesia Jacobs who lives with her mom on a goat farm near the sea of Maine.  Her mother, Lidia Jacobs, is originally from Italy before she moved to the little town of Twin Willows, Maine.  A couple years later, Alesia's father dies, and she is left with only her mother, but the town was shown to be very supportive of her and her family.  

But then, a famous national company called The Guild Incorporated came to Twin Willows to build a very efficient power plant using the water at Alesia and her now-dead father's favorite place to hang out- the waterfall in the forest.  This devastated Alesia and Lidia.  Eventually, her life gets much harder when she learns that she is one of the Benandanti, which means that she has the power to separate her soul from her physical body.  While in this form, her soul took the form of a falcon, and she joined with a clan of four other Benandanti to fight against the main antagonists, the Malandanti.  They are doing this to reclaim one of the seven major magical sites around the world.  The rest of the story is spent with her attempting to live a double life with her normal self as a teenager in high school and her life as a member of the Benandanti.