Does Shenzhen Baoan's blue real estate license have the right to trade and transfer?

What he said is correct. The difference between blueprint and red is whether it can be bought and sold freely. If the blueprint is used, the government will take it back for free at the time of requisition, but the red one needs compensation, and the Land and Resources Bureau can only change the blueprint into red one after paying the premium. To be on the safe side, I suggest that when you deal with your friend again, you and he agree on the price. You should give him a part of the deposit first and then sign the contract. The two of them go to the Land and Resources Bureau to pay the premium (the premium in Luohu area is about 2,000 yuan/square meter), and the money is paid by you. You can't go through the transfer formalities until you get the little red book. This is the most secure, but the time will be relatively slow.