@Danielle *******
correct. Copies of land deeds in family name, birth records of any kids , yes a job helps, references from police , etc yes she needs to show proof she has reason to return. My wife was refused 3 times even though we had marriage certificate in Thai translated to English and notarized and registered with our embassy in Bangkok . We were refused 3 times so I went to freedom of information and saw that immigration officer said we were lying not really marriage so I went to my MP and threatened to take it public and finally got 5 year visa with unlimited entries but limited to 3 month stay. Don't give up.