ok no problem, i live in a village 120km from pattaya, I go the the district immigration office,50km away, they come to the house and take pictures of the house my the wife (thai) and give around 500 bauts for dinner , but that's it ,they ask for nothing, and they are very helpful, respectful 😀!!!!
Find the nearest immigration office to where you live, go and ask them for the paperwork for a extension of visa being married you need 400,000 buats in account for 3 months before the renewal ,(second time of renewal) first time 2months)