1. It is not clear as to through which legal document the title of the property of your deceased father was conveyed in favour of your mother since the said property is inherited by all the legal heirs of your deceased father being your mother, yourself and your brothers and sisters.
2. If you have already registered a relinwuishment/settlement agreement conveying your share of your deceased father's property, then you can not raise any claim thereupon anyfurther.
3. If there was no such deed of conveyence registered by you in conveying your share of the said property, then you can certyainly lay your equal claim on the properties of your deceased father along with his orther legal heirs.
4. You can sell your undevided and undemarcated share of tghe said property to a third party without taking any7 consent from other legal heirs only if the said property is not a dwelling house where all the other legal heirs are residing.
5. In case it is a dwelling house where all the orther legal heirs are residing, then you shall have to offer to seel your share to them at the price you are getting from the third party and in case they refuse to buy your share at the sam,e price, you can sell it to the third party. it is called pre-empting.