Every foreigner need to be reported of his adres by his landlord, hotel staff.. within 24 hours of arriving. Married to a thai makes no difference. The key is... "every"
No. Only a Australian newspaper wrote about it. But also mentioning other countries in the list. The headline of that news item was misleading. Saying its about Australia.
60 days extension doesn't mean its only if married to a thai. Its Thai family extension. Can also be for a legal kid. Its about any legal relationship to a Thai.
Most immigrations accept 30 days in advance. Some such as Bangkok, Phuket and Chiang Mai accept 45 days. Some such as Pattays its a week. Check at your local immigration or ask people there.