Now a days it seems they are 100% Nego. Because there are Numbers of empty Villas/flats for rent in Qatar but with very less takers. Thats why maybe you observed that rents decreased alot specially from last 6/7 months. Now you have lot of choices. If incase you are not satisfied with one regarding rent or flats condition than you have no. of choices inthat case.Here in Ql.com almost 80% of ads are from rent agents.
GoodLuck