Very urgent - new plot ownership procedure - experts pls reply

I have just finished my plot installments and i don't know what is the procedure to get ownership of that plot!
1. Can i have our experts opinion and remarks to get genuine ownership as per sindh/pak law.
2. How much it will cost to have that ownership?
3. What are required documents?
4. Is it possible that if the party who is going to own plot is out of pakistan and he authorizes somebody to deal and get ownership on name of that invisible (abroad living party)?

Anybody there to respond my above query?