What are the requirements for obtaining a 1-Year O Visa in Savanakhet, Laos as a foreigner married to a Thai citizen?

A user shared their experience of obtaining a 1-Year O Visa in Savanakhet, Laos based on their marriage to a Thai national. While they submitted all required documents, they were initially rejected due to a lack of proof of their wife's name change to match theirs. After their wife provided the necessary documentation from a Bangkok government office, the visa was successfully granted. Other comments discussed the reasons for going to Laos for visa processing, the different requirements that may vary by immigration officer, and the possibility of conducting similar processes in other locations.