want to buy a 12 marla house in askari 10 Lahore,

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Dear CMY Sahib
A.A
I want to buy a 12 marla house in Askari 10 in Lahore.
I will be visiting Pakistan in August. I need your precious advice about the following issues,
1. Which block has better location?
2. Which type of house has better construction?
3. How much time for transfer of a house in Askari 10?
4. How much time for possession of a house?
5. Can any owner sell his house anytime without any time limit after construction or they have to wait for sometime.
6. what are lease on houses?
7. What is the average price of a recently constructed house in a good block?

Thanks

I will be waiting for your replies and opinion of other visitors of this website..