Is it permissible to pay a sum of money to a real estate office to obtain a document proving residence in Jubail Industrial City—while the questioner resides in Jubail البلد (the town)—in order for the son to be accepted into the Royal Commission schools?

If the system prevents students from outside the area from enrolling, in order to preserve the public interest and security, then it is not permissible to resort to deception to obtain a forged residency certificate, and this is considered forbidden fraud and forgery. However, if there is no system preventing this, and you are wronged by your children being denied admission to this good school, then it is permissible to resort to stratagem to obtain your right, even if it requires lying, with a preference for insinuation and equivocation if possible. It is advisable to negotiate with the school administration to ascertain the truth of the matter.