I recently had a successful struggle with visa transfer and below is how I got it.

Did you get your family resident visa printed ?
If yes, step 2. If no, step 1.

Step 1

If not, go to Emigration office in Madina Khalifa with your visa application number. They will take Qr.200 for each family member and issue visa (printout).

Step 2

In the same counter ask the person to change the visit visa to the new resident visa. They will change it for Qr.500 per family member. Now you will have a new sticker pasted on each of your family members passport with a validity of 3 more months.

Step 3

Walk in to medical commission and finger print office with the passports. Once this process is completed your family will get resident permit and a resident visa sticket on their passport.

Hope abouve info helps. Pls include me in your prayers.