Recently made a Thai Will with a reputable law firm in Pattaya. In both English and Thai. 3 copies...one retained by the firm and the other 2 for us. It specifically states that my Thai bank account, SUV, electronic devices and optics + all other assets are to go to my gf, including any purchased henceforth. She is to contact our lawyer ASAP, after the pertinent local authorities, and they will assist with the process of executing the Will (probably for an additional fee, but that's OK, as she'll need the help). It cost B10,000 and well worth it for piece of mind knowing she has the proper legal documentation and assistance. Have seen others firms as low as B7500, but was impressed with the professionalism of this firm. Had previously downloaded a DIY Thai/English will and had it all done with 2 witnesses about 2 years ago, but decided that may run into legal entanglements.