What are the requirements and process for extending a Non-O Visa in Thailand?

Good Morning,

Just an update .

(and a Thank you to Todd and the rest for assisting with answers to questions)

Received my one year "extension " to my A-O Visa yesterday at the Suratthani Office. 1900 Baht

The ladies were very helpful, and virtually no Que.(I arrived just after noon, and waited for the lunch break)

they did not need the multiple copies of my passport, just the main page, VISA page, and TM-6 page.

nor was the Medical report, nor police report requested.

They did take a Map (I traced from google Earth) and a Photo, of my rental house.

I still had 41 days remaining on the single entry (90 day) .

The extension covered 365 days.(Beginning at the end of the original 90 day single entry)

after that was done, I went to a second agent to process the Multiple entry, 3800 baht

There too, she was very helpful, (a Photo was added to the application) (blue background)>

Done (total time) in under 2 hours (including the lunch break)

Based on Retirement, the Letter from US Embassy (original) are accepted for up to 6 months from notarized date.

Thanks again,

It was easy, as all documents were in my possession.

TM-7, rental agreement, copy of landlords ID card front and back and signed, passport copies (mentioned above) map, house Photo, and financial statement.

She did request to see my bank book, but was satisfied

when it was explained that I only withdraw $$ as needed and shown the copies of the ATM Receipts .