Not that I know of.Has ansi ever made a statement as per stick-built vs. modular?
My nephew took some people to look at such a listing and they were furious. They had explicitly indicated that they were NOT interested in ANY MH. He lost their business and eat another agents butt over it. I'm sure it didn't matter. "More traffic" ...I once asked an agent why she listed MHs as regular houses in a development where MH's were common. She said because people would not want to go out and see them if they knew in advance