^-^^^ You both are correct I think, however there's another loop hole for foreigner land ownership with no limit on years or #rai other than a top off point at which they may do the Thai thing and post another straw-man with suitable qualifications. Easy peasey for the millionaires.
Reading through the Royal land bureau reports one finds lots of data as regards lands held and partnerships. Numerous hotels and businesses are joint ownership with this side of the coin.