There isn't an issue with doing that NFR, but a word of warning on the schools in the Gulf. If they know that your wife is married to a person who is already working here they will be cheap bastards and not hire her as an overseas hire (which gives her the return air tickets, accomodation allowance, and a higher salary) and will try and hire her as a local hire. The upside of local hire though is that she could walk into almost any school in the UAE and be hired tomorrow because she is a cheap local hire teacher which saves the schools mega bucks. Advice is if she is going to be a local hire, play hardball on the salary cos they are winning big by getting her, versus having to pay to sponsor someone in from overseas themselves.