- As per law, a nominee cannot transfer the property without the approval of other legal heirs.
- Since, your father had executed the nominee deed in the name of two step daughter and step mother , but during the life time the nominee deed cannot executed , and like a WILL it is executed after the death of maker.
- Further, after the death of your property his property would be devolved upon all the legal heirs , and further a nominee needs approval from legal heirs to sell a property.
- Hence, your step mother was not having any right to sell the nominated property without all the legal heirs , including the legal heirs of first wife.
- Further , the limitation period to cancel / challenge a deed is 3 years from the date of execution or from the date of knowledge.
- Since, you can know after the death of your father i.e. 2018 , hence legally you can challenge the said sell transaction done by the step mother , as your limitation will run from 11.04.2018, and not 15.06.2016.
- You should send a legal notice to all the other legal heirs for dividing the property equally.
- If , refuse , then file a Partition suit before the court.