The Scottish Conservatives say the Right To Buy scheme must remain as Ministers plan to scrap it.
It's estimated up to half a million Scots could be denied the chance to buy their own rented home.
The Scottish Government announced last year that it plans to scrap the Right to Buy scheme by 2017.
Ministers claim the scheme has reduced the number of homes available for cheap rent and increased the waiting lists for properties.
Conservative housing spokesperson Alex Johnstone disagrees.