If you have traveled outside Thailand your old TM30 is invalid anyway.

A new TM30 within 24 hour at every new adress. Always a new TM30 after a travel outside Thailand. See this as rule, with some exceptions on some offices.

Some offices allow you to travel in Thailand without a new TM30, other do not. So you need to check this at every immigration you live under. I believe all immigrations demand a new TM30 after a travel outside Thailand.

If you still was living in the house you last reported in, then immigration depending on office would let you register without the landlord. But you have a new adress and a new landlord. You cannot expect to register a new adress on a previous landlord. The house you live in is not the previous landlords house.

You can explain the situation at immigration when you arrive, but I do believe there will be a fine, because this is illegal in Thailand. Chiang Mai is known to be strict. But I cannot foretell how they will see this.

Ok, so you did not even meet them the same day you got the house? TM30 is expected within 24 hour from arrival to the new house. Not days or later. That's why there is a possibility for a fine in this situation.

What I understand, when you say, I have since changed house and you mention new landlord.

Your new landlord did not file a tm30 whitin 24 hour of your arrival to the new house?

Depending on how they see it when you now arrive from outside country, you might get a fine.

TM30 is for every new adress with landlord you have.

Phil Collins remember that the date you have on your Visa is only the between dates you are allowed to enter Thailand. When you enter Thailand on the airport you will have 90 days of stay stamped, even if you come on the last date on your Visa.

Remember to bring with you your marriage certificate.

Put in the money in a thai bank as soon as possible. If you are married to a thai, then the requirement is two month in a thai bank, but several immigration want three month.

When it is 30 days left of your admitted to stay stamp you get at the airport here, you put in an application for an extension of stay.

No, you have misunderstood the reason for screenshots. If you go to an immigration office and register manually, you will have a receipt in your passport. Regarding the onlinesystem, the screenshot is your receipt, to put in your passport.

have noting to do with not trusting their own system. If you are stopped and controlled in the city, they do not have a computer with them and can check.

Play safe and have a ticket booked within your 30 days exemption.

The experts here know more. But there is two points that can deny you. The flight will not let you check in. Most I heard of know that you can apply for an extension and accept a ticket out after 60 day. But some gets refused.

In Thailand, immigration give you an admitted to stamp with 30 days, not 60.

Rules they follow if they check your flight is flight out of Thailand within the date he stamp. He know that you can apply for an 30 day extension of stay too. But still, it is not within the day he admit you to stay.

So, up to you. Rules is what they is. You might pass both check In and immigration. But you also might be refused already in the check in.

In this case, as he said, he do not have a visa. I asume that he say with Visa Free, an visa exemption. Hence no visa.