Who is Melissa Taylor?

Melissa Taylor is Joaqiun, Grace, and Maya's long lost biological mother. She has Joaquin when she is seventeen, and as soon as she does, she is disowned by her family. She was in love with Joaquin's father, also named Joaquin, but he and the rest of his family get deported back to their country of origin. Later, she gets together with a fellow server at a restaurant where she works, and gets pregnant with Grace. Grace's parents pay for Melissa's rent throughout the pregnancy, but her father leaves soon after there is no longer an influx of income. Maya's father is a mystery, but perhaps a dangerous man, since Joaquin and Maya had to be removed when he came into the picture.