To the TS and all other who wants to get in the organised photoshoot business,
If you are running a business, regardless the size, dun be a cheapskate and reuse the model's photo taken by another photographer. Do your own pre-marketing shoot, (something like what Modellin does) and post it for your sales promotion.
If u can't shoot, hire one.. there are lots here, some are free.
The model can use the photo to show to u how she looks like, for casting purposes, but to draw the line clear, dun use them.
Make your own and no one will mark u wrong.
Its that simple.