Or just wait until the next time you have to go to Immigration- the fine doesn't escalate.

If the baby was born in Thailand there is no need to do anything. Obviously if the baby leaves Thailand at some point he/she will need a passport and you just have to present the Thai birth certificate at Immigration at the airport. We did this for our son, although on returning to Thailand we got him an O visa and now he's attached to my Extension. Even though there are no bans or fines for overstaying under-15s they do get an overstay stamp in their passport.

It should be no problem getting a 5-year or 10-year Visitor visa, if she has a record of visitor visas, with no overstays. All Visitor visas are ME, although she will only be allowed to stay in the UK for a maximum 6 months in one year.

The same day. Or you can pay 1,900 for a 7 day extension.

I don't think he has a visa

A visa is just used to enter the country. Presumably you have an Extension of Stay. If so, this needs to be cancelled before you leave the country.

@Mark *******

She can get a Marriage Visitor visa which allows her to get married in the UK, but then she has to return to Thailand. My wife had this visa.

Have a good trip.

Contact

@Paul *******

for professional advice.

I think so. If you can prove you have been in a proper relationship for 2+ years. Settlement visas take a long time though, and you'll need the English test certificate and TB test before you apply.