Searching for a house (Tunis)

Hello everyone,
I'm planning to move to Tunis and I'm searching your advice here..
How did you find the house(apartment) for yourself, did you use some agencies or by some rumors?
What should I do first to find the good one(secure,nice district cvs reasonable price-quality)???
Thank you in advance)
Olga
P.S. It's the same question about nanny and housekeeping)) if you have some experience