You can have a 30 year rolling lease x 3 ( 90 years) if you buy new or take over a lease. Fre3hold as stated will have to be Thai owned or Thai company owned (min Thai is 51%)
I keep my old UK bank, added Wise account which has a UK address too. Transfer sterling to Wise, convert to Baht and then send to you Thai account. Works like a dream.
Every transfer to Wise can be automated, conversion automated and even to Thai account automated.