The TM30 thing is a PITA but this is how I see as a possible way to manage renting an apartment in Bangkok while keeping the Jomtien condo before deciding to sell the condo or not. No I wouldn't be interested in being a landlord myself. Not sure this would work but here goes. It is true you can't have two primary residences. If you have more than one, you need to pick one. OK, for condo owners in Jomtien the current rule as I understand it is that you don't need to even file a new TM30 in Jomtien for "temporary" stays in Thailand when you return to Jomtien. I guess they mean hotels and AIRBNBs etc. but couldn't the same rule apply? Of course I have a current long standing TM30 for my owned Jomtien condo. So, in this scenarto I would consider Jomtien my primary residence, do my 90 day address reports based on there, and continue to do annual extensions at Jomtien. Renting an apartment. Here's a tricky part. The landlord may or may not file a TM30 on me but it's highly unlikely they would filr them each time I arrive (as the plan would be to go back and forth). Given the Jomtien tule for condo owner TM30s would this be different or not to if a hotel filed TM30s? Hotels generally do. Landlords may not unless pressured. As implied before it might be better to rent from a landlord who doesn't know about TM30s or if they know, doesn't want to bother with them. Of course they still might file them, but this plan in theory should work even if they do, as Jomtien is the primary residence. This assumes Jomtien doesn't even want a new TM30 filing on each back and forth return from Bangkok. Of course I'm not sure about that part if they would see an apartment TM30 different than a hotel? Maybe hopefully "worse case" is doing extension applications as early as possible using the long standing Jomtien TM30 and then if pushed back, do a new one for Jomtien, maybe owing a fine? This shouldn't be so hard, huh?