What are the requirements for a Non-Immigration O one-year extension in Jomtien before expiration?

Some questions doing late August Jomtien non immigration over 50 one year extension.

In Jomtien, can I do it 45 days before the expiration of the last extension (9 Oct)?

Last year I did my first one-year extension in Bangkok. Is there anything to be concerned about with doing my second extension in a new city?

The documents required for extension on one Thai Immigration list I have are copies of appropriate passport pages, filled in TM7, and bank letter and copy of bank book showing 800k balance for at least two months.

I have never needed to do 90-day reports because I have always traveled.

Do I need anything else for a Jomtien extension application? I will have a TM 30 from hotel and hopefully Jomtien Imm. Ofc. will have provided me a tm30 receipt a week before I do the 1-year extension application.

It's easy to get confused with all the requirements but I don't remember clearly seeing that it is required that I have a copy of a long-term lease in Pattaya before being granted a non-imm. type O one-year extension. Any unique requirements in Jomtien in that regard? Maybe there is something about people in hotels cannot apply for when your extensions?

The Pattaya hotel I am staying at has weekly rates and it will be my address for a week or two for the one-year extension application. I have to go back home for a medical visit before I return to Pattaya for a longer-term lease.