Jack of the Red Hearts (2015) online

A streetwise teenage runaway is on the lam from her probation officer. Her name is Jacquelyn, but if you call her anything but Jack, she'll cut you. Needing to lay low, earn money, and gain adequate stability to rescue her 11-year-old sister Coke from foster care, Jack cons her way into a suburban home as live-in helper for their autistic 11-year-old daughter, Glory. Much to her surprise, Jack has a unique ability to connect with the nonverbal little girl. As she positively impacts Glory, the family impacts Jack. Particularly Kay, Glory's mother.