I think that everything will be legal, but only payment for the rent will be made not by the fiat, but by tokens.
Then there may be a question about the official circulation of these tokens in a particular country.
What's the official attitude in China to cryptocurrency?
In china is currently not possible to run an ICO and currently not possible for exchange to trade token against CNY (al least until new regulation for money laundry will be approved).
But there is no limitation to token or token trading C2C, and China is absolutely open to block chain technology projects.