If you are not married, it is illegal for a man and a woman to share a property, even as roomates.

There are plenty of men and women who are not married sharing, but discretion is the key. Easier to tell people you are married.

As for the crane issue, I would have thought that there was more than 25% here in Dubai. The problem your boyfriend would have, is most of the "manual" type of work is carried out by Indian labour and the salary would be far lower than a westerner would consider working for

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