It depends. Homestead act properties have land patents, which are legally perpetual to the assignee and their heirs and subject to no superior landlord, which m

It depends. Homestead act properties have land patents, which are legally perpetual to the assignee and their heirs and subject to no superior landlord, which means immune to liens, property taxes, and basically everything else (not sure on eminent domain). In practice though the US federal government is just as happy to ignore its promises to Americans as it is those to the sovereign tribes.