what do you want to say? '買樓的50年租賃' what is it?
does it appear on the title deed? is yeah, that is the time period of the Right of Use of the lease granted. a little complex. all land in hkg is leasehold that is own by hkg government not by any landbuyer. landbuying actually pay for a certain period of time to use the land. return the land to government at maturity. if the landbuyer develope and build properties such as multistorey strata building and sell individual unit to the 3th parties. the 3th parties also bound by the time period of the Right of Use of the land.
hope i could answer your querry? you may ask your solicitors la. they are professional.