Luật sư tư vấn về chủ đề "land taxes"

Dear lawyer, My parents died in a traffic accident in 2016, my parents have left a piece of land and the house. Three sisters currently want to do procedures to change the name on the Certificates of land use rights. Our grandparents are gone. I want to ask the following questions:

Ordinance No. 34-L/CTN dated June 03, 1994 of the Standing Committee of National Assembly on amendments and additions to a number of articles of the Ordinance on housing and land taxes