Closing Limited Company

Have been working in Thailand 14 years, and opened a Thai Limited Company 5 years ago. I am retiring end of the month and will switch to retirement visa. My work permit was issued in Sri Racha and have been informed I have to turn in the work permit there. I live in Pattaya and want to have the extension of stay in Jomtien. Current extension and work permit expire end of March.

My problem is that once I turn in the work permit, I have been told I have to do the retirement application the same day.

Is there any way I can switch visa earlier, and then turn in the work permit a few days later? Or will Jomtien immigration say the extension of stay I now have has to be canceled first??

Help!