To Forum Newbie,
as far as I know, dog is not an issue. I have one with me and hundreds of other pilots also have imported theirs. Being married with children will put you in a house, so no big issue.
The only concern is the temporary accomodation that will be assigned to you while you wait for your villa; this can take from 1 to 5 months. The dog could come after that and you could bring your family 2 months after you joined, or keep them there for the first 5 months and "commute" (not easy) a little bit (alternating between you going there and they comming here).
Pitoss