@Andy *********
agree did my wife's and over the years helped others and you need to show the applicant is returning home. Ties such as land, business, even kids. So many overstay they have to be hard.
My fist wife, Thai, became a US Citizen, however after she passed I remarried so back to square one
I used land, business, family, bank accounts as she was joint on my US and Thai Accounts, her bank accounts and documented proof of my long term ties to Thailand. Interview was 3 minutes