@Lorenzo *******
you can get a 90-days Non-Imm-O visa on a Thai embassy or consulate in Laos or elsewhere, if you can fulfill the requirements. Vientiane requires an appointment, Savannakhet is walk-in! However in Savannakhet, you need the proof of having 400.000.- THB in your Thai bank account. And only after being issued the 90 days Non-imm-O family visa, you need to wait for the money to season for two months, before you can apply for the "one year Extension of Stay". The procedeure, sadly is apparently very difficult for you to do, as it needs to be completed within a timeline of three months