Unfortunately in Dubai, if you rent you own place, you absolutely don't get to decide how long you'll stay and where as almost every (greedy) tennant will try to increase the price every year, regardless of the rera rules and if you don't agree, you move...Simple as that !! They'll try everything to get more money including sending you away after advising you with a written letter (sent just in time ) that they want to come back and live in the apartment you're in.
Dubai living is fine only if you'r brave enough to buy your own place.