Hello. My husband and I are purchasing a 1996 doublewide mobile home. The home is in great shape; however, the walls in the home (which I believe are vinyl paneling) are stained. They are supposed to be white with speckles of green and maroon on them; however, they are a yellowish color. Once the old pictures were taken down from the previous owner, the stained walls were very noticeable. My husband and I thought the stains may be from nicotine; however, we have tried using a variety of cleaning products to remove the stains and have been unsuccessful. Can anyone recommend a cleaning product that may be helpful in this situation? Thanks, Sue.