樓宇成交前3天，收到律師通知有兩項僭建， 律師說不可否延遲成交 現在是放2萬在前業主律師樓，30日內前業主搵人維修，管理處驗收，使用一個月無問題可以取回2萬保證金。 兩項僭解，冷氣機架不可駁外牆，多了一條去水喉。 1，咁遲通知，對方是否犯法，怎追討 2，8000斷尾?對方維修?

1. No. As a buyer, when there is a material change in the transaction (such as uncovered hidden condition), you have the right to cancel the transaction and get your deposit back.

There is no obligation that you have to work with the seller.

2. It is up to you how you want to deal with the seller.

Note - if you are aware of the condition prior to the sale, and you accept whatever suggested, the condition can't be used as a reason to cancel the sale.