lucky for me i bought my house from a trusted agent..
he is also very friendly...

i also met a not very nice 35~40 yo lady that to me seems very selfish..
just when i asked the price advertised in the internet ..
when i asked whether the price can be negotiable or not
she immediately said that the owner had mistakenly put very low price...
so she have to sell the house fast and need to give 2% d/payment by next day...