a passport will confirm citizenship of what country ...but residency...you need a proof and address in that country ...but knowing thai English...you never know what they really want
the two different wills are separate and independent of each other . As a foreign will has no weight in Thailand ....thus whatever you own in Thailand has to be on a legal Thai will ..and in your country. You have must have a will to dispose of your estate there . You cannot leave your foreign owned assets in a Thai will ..as the Thai jurisdiction has no power in your country ..or the other way around . Maybe I am not understanding what your intention is ??
do you relize after your death ...if anyone included your wife pulls money from the account... the courts treats it as theft . Until the your will is probated...that account is frozen...make a will ...or everything will end up in the government hands
Farang is a Thai name for a white ' Caucasian' person of colour . It has nothing to do with a tourist . Asians are referred to their country origin ...Jeen, Ipon, Galee ,lao...etc. and its not a derogation...as most westerners feel