Dear Mr. Espinoza
Principal of American School
I am writing for you regarding my worry about some academic and security aspects in the school.
After all I would like to say thanks for the opportunity to receive my letter.
In the academic context is urgent to contract specialist in spanish area due to the teacher who is teaching this time is not enough.
In the other hand is necessary study more deep the background of the teachers of your contract and their familiar entorn.
Please, keep me posted about your point of view
Sincerely
Lois