My sister occupied the first floor of the independent house owned by her mother in law after marraige. Her husband used to stay alone on the first floor before marriage. She was not invited to stay on the first floor, but she and her husband stayed on the first floor as her inlaws were living on the money generated by her husband. The first floor is an independent floor wth its own entrance. There are only two floors to this house. Her mother in law and father in law stay on the ground floor. My sister has ocupied this place for more than 22 years now. It was a continous occupation. Now her in laws want her to leave. Can she claim adverse possession? Her husband is not willing to fight against his mother, but her children aged 22 and 20 have her support. They too have been living here continously since birth. Can my sister and children claim for adverse possession?