Make sure the 65,000 a month for retirement visa and 40,000 a month for marriage visa are paid into the Thai bank from other countries and the bank statements state it is foreign transaction otherwise application will be rejected
wrong I have two passports as I travel international for my company ,I use one passport for Thailand and another for entry to the UK or other country if you don't need visa
if you mean me I have work permit for Indonesia and Brunei for your information,I don't work in Thailand only come back for 1 month at a time to see my Thai wife
airport only issue entry stamps and exit stamps ,they won't deal with transfer of visa from one passport to another ,go to proper immigration office get it done