Hi!
First, I do not know this agency except that they have a website. http://www.footprintsrecruiting.com
It has a google pr of 6 but this doesn’t mean much.
Just make sure they fix your papers properly.
Do not pay any money to agencies especially not before you really got the job. Most agencies do not take money from the teachers they take a commission from the schools. If they do take money from you I think, it should not be more than 20% from your first paycheck after three month of work or so.
But I cannot give you any concrete information since I personally don't like agencies.
Maybe someone else can comment on that.
Good luck
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