✔ 最佳答案
新租約 will protect both 業主 and 租客 as the terms are stated in the租約.
I suggest you also paid the stamp duty(加 蓋 印花), this will protect the 業主 more.
電 子 物 業 印 花 服 務 can be perform on line at and takes around 10 mintues only.
http://www.ird.gov.hk/chi/tax/e_stamp.htm