In your 2 countries I’m guessing you’re a citizen and the rules are different for you as a citizen
I’m probably sure you don’t keep up with foreigner rules in the 2 countries you’re a citizen in as far as visa requirements businesses opportunities and tax requirements
So if you own property in Thailand as a foreigner to use as a Monthly investment stream via rental income you need to have a WP and TIN to do so
Thais are citizens in Thailand just like you are in your 2 countries and play by different rules than foreigners