Hi there, trying to find out if I'm on the right path ... ;)

I'm a german citizen, just turned 50, living in a town house in Bangkok with thai friends and currently staying on a 30-day-extension of my tourist visa, valid until december 4th.

I plan to apply for a 90-day non-immigration O based on being 50 years old in Chaeng Wattana later this week. I'll have the required 800 k in my thai bank account and will go to Bangkok Bank tomorrow to ask for the letter of proof of funds. As I understand I will not need any police or medical check. Just the usual copies and an updated bankbook from the same morning I apply.

Concerning the proof of adress, my thai friend has a rental contract for the town house where we're staying, but it expired like 3 years ago. do I need a copy of the contract to show immigration or is it enough if she - being the house master - just fills out the notification form for my place of residence, together with a signed copy of her ID?

hope someone here can advise me if all this sounds fine or if there are any issues that might cause a problem. big thanks in advance :)