Where can my Thai wife obtain property deeds for her houses, and how does this affect my visa application?

I have a roundabout Thai visa question. My Thai wife of 45 years has owned a few houses in Thailand. One in NamPhong and 1 or 2 in Nakon Phanom. But I have never seen an ownership document like a Property Deed - โฉนดที่ดิน. So I was wondering where she could get that document. ( she isn’t very good with paperwork). So if I secure that document, I was thinking of applying for a 1 year non-immigrant visa to visit my wife ( family) in Thailand. We are both in Florida currently, but technically we would fly to Thailand together and then I would be visiting her. I have had 3-4 non-immigrant visas in the past but over 10 years ago. It seems that the TM 30 is more important now than in the past and maybe I could be put on the House Registration that would simplify the TM 30 process. Good idea or some other alternative???