Seems like there’s conflicting info on their website. I guess not surprising for Thailand lol.
“If you have lost TM.6 or TM.47’s receipt or you have passed the 90 days limit without making the 90-day reporting, you must get a police notice from any police station before the appointment and pay fine 2,000 Baht (fine applies only in case of failing to make the 90-day report) to the immigration on the appointment date”
Really really bad investment to buy in Thailand…..And very risky. Have a look at some 10 year old condo buildings that looks 30 due to cheap build and low maintenance