Jun 28, 2007
you're right about 'getting around' the unmarried and living together issue. but as previous posts have discussed to death i'll summarise it for you by saying that whilst some people will rightfully advise you that unmarried couples living together is illegal, it is a widely flexed law and rarely enforced. but of course, if you act a banana then the slim chances of it being a problem will increase. but in truth, it's not really anything to worry about as you know.
however, that is a separate issue from from your girlfriend's visa. as you're not married you can't sponsor her (i believe that is the right term?), therefore she will be in dubai on a tourist/visit visa which can be renewed twice, not perpetually, at some point she'll have to leave the country and come back in again (commonly referred to as a 'visa run' to say, Oman for example to get a new stamp on her passport). although it is worth noting, as discussed in further depth elsewhere on this forum, there is talk of a change to the law so after a couple of renewals she'd have to leave the country for a month before being allowed to re-enter on a tourist/vist visa.
in truth, i'm not entirely up to speed on what's happening in that regard at the minute, but there is another post within the expat help section that addresses that issue in greater detail.