Though you may have visions of mega-millions rolling in from your child's modeling, this is rarely ever the case.
Don't take rejection to heart
If you do decide to help your child pursue a modeling career, prepare yourself for this certainty: At some point, someone's going to reject her. It may happen right away, with your snapshots being returned in the mail, or later at an agency interview or go-see. Don't let it bother you. Remember, modeling agencies and their clients don't always look for the most beautiful or perfect-looking child to sell a product or represent a story. They may want anything from a tiny brunet with a spray of freckles across her nose to a gap-toothed boy with curly red hair. Your child may simply be the wrong shirt size, or she may even be too cute. At least there's someone who always thinks she's picture-perfect -- you!
They will contact you
Trust me, if they are interested in your child they will. And in most cases, if you are contacted by multiple agencies you can work with ALL the agencies (unless you have to sign a non-compete, which is not normal unless you are highly regarded).