The Long Leases (Scotland) Bill will convert leases of more than 175 years, and with more than 100 years to run, into ownership.
The Bill forms part of a programme of property law reform put forward by the Scottish Law Commission.
The Scottish Government estimates there are around 9,000 “ultra-long” leases in Scotland. Two-thirds of the leases have annual rents of £5 or less.
Long leases tended to be granted by large estates, between 1770 to 1860, to encourage the industrialisation of Scotland.
Environment minister Stewart Stevenson said: “This Bill will simplify Scotland’s land tenure system. Ultra-long leases are so long that the tenant is, in effect, the owner in all but name.
“This legislation will convert virtual ownership into actual ownership.”