You cannot claim adverse possession against family member
2) possession of one is regarded as possession of all
3)
The Supreme Court in Chatti Konati Rao & Ors. vs Palle Venkata Subba Rao has explained the underlying principles in cases pertaining to claims of Adverse Possession
a) It is a well-settled principle that a party claiming adverse possession must prove that his possession is "nec vi, nec clam, nec precario", that is, peaceful, open and continuous.
b) The possession must be adequate in continuity, in publicity and in extent to show that their possession is adverse to the true owner.
c) It must start with a wrongful disposition of the rightful owner and be actual, visible, exclusive, hostile and continued over the statutory period. (See S.M. Karim v. Bibi Sakina AIR 1964 SC 1254, Parsinni v. Sukhi (1993) 4 SCC 375 and D.N. Venkatarayappa v. State of Karnataka (1997) 7 SCC 567)