Omg... She's a 20 month old child and you are already thinking along these lines???
Modeling/acting is WORK
IF an agency is interested, they will let you know.
IF anyone suggests you spend ANY money... RUN don't walk away.
I've modeled most of my life, my daughter models as well.... It is WORK
If you get into it ( we don't, it's only side opportunities) you go to auditions which might not be convenient for you, they are ruthless, so be prepared to hear that your child is not a match and take no offense to it,
If you do manage a rare opportunity... Put all $$ into an account for your child because it it your child working.... Not you
The overall best thing to do is to allow your child to be a child.... Go play, interact with other children and don't focus on potential earnings your child might make for your benefit.
The modeling industry is brutal and if you don't have a thick skin as well as your child.... Then your child's self confidence and esteem will be destroyed.
Bottom line... Don't be so into the fact that your child is the next star so much that your mind gets shaded and in the end scammed. Ruthless people prey on parents who believe they have the next star.
Allow your child to be a child ... They grow up way too fast. Why try to market them?