Best of luck, May your stay yield fruitfullness to doha and you. as said by ash_w(QLer) Qatar airways have pre rented building for accomodating their staffs.

Personally, i have experienced them being good enough. So dont worry, inshallah(by gods will) it should be ok for you too. Regarding schools there's no harm in applying through online or by fax in order to be on the safe side. Later once you arrive in here and completed the necessary formalities for getting your resident permit visa stamped, you can approach schools personally.