Shatterproof by Lexi Greene

Emily Stone, an internationally successful model on the brink of supermodel stardom, appears to have it all. All, except love, because Emily wants the kind of man who isn’t fooled by the pretty. She wants the kind of love that’s big enough and true enough to include her disabled sister and dysfunctional mother.
Nick was an A-list actor in tinsel town with a super-sized ego until a tragic car accident stole his wife, his unborn child, and his gilded career, leaving him physically and emotionally scarred.
When wintry French Island brings these two wayward souls home, shared childhood memories aren’t enough to bridge the deep divide forged by their adult lives and choices.
That is until Carmie, Emily’s delightful Down Syndrome sister, weaves her special kind of magic. Can Carmie’s boundless love and infectious joy help them to heal their broken hearts or will the glamour of Emily’s work-world whisk her away?