@Ian ******
Visa or visa exempt entry are both ok as long at it gives you enough days for the process. So someone coming from a country that gets less than 60 days visa exempt may not have enough time on a visa exemption to get the process done. They may need a longer tourist VISA. Also, depending where you apply (which immigration office) some may require the 800k deposit to be in the account for 60+ days BEFORE you can apply for the 90day Non-O. If this is the case, they may need more than the 60 day entry plus 30 day extension, and may need to do a border run to get a new entry (likely 60 day visa exempt). This just happened to a friend. He arrived on 60day tourist VISA. took about a week to find a condo, sign a contract, and get the resident letter from the immigration office to open the bank account. Opened the bank account and transferred the funds in from his home bank account, but it took about 5 days to post to his new Thai bank account. When his funds would be in the account for the 60 days required in Jomtien, he wouldn't have the required days remaining on his 30day extension to his 60day tourist visa. They told him he had to exit the country, enter on the new 60 day visa exemption, and then apply for the 90day Non-O. They said no problem to do this and have been very helpful every step of the way in his process. THIS IS IN JOMTIEN AND MAY NOT APPLY IN OTHER IMMIGRATION OFFICES. So it's important to verify the time requirements in the office you intend to apply in. Good luck.