Making of will

I want to make a will for my flat and put conditions for the same in my will as under: I hereby declare that I have married to Miss_______ and I have changed her name to ____ from ____ as per customs prevalent in our community and my wife Smt. _____ subsequent to our married relations gave birth to my two kids viz., baby girl named by me as _____( now married to ___ and residing at ___) and baby boy named by me as ___ (now married to ___ and residing at ___) and hence I have only three legal heirs as mentioned below for inheritance purpose of my properties / assets owned by me. 1. My wife. 2. My daughter. 3. My son. In order to prevent any litigation amongst my above mentioned heirs, it is my wish/ will that my immovable property should be shared / disbursed / distributed amongst my above mentioned legal heirs in the manner described below by me. I have been enjoying full ownership and control over my following properties. 1. Description of Immovable property owned by me:________________ 1.1. Distribution of my Immovable Property / flat after my death: After my death, I bequeath my immovable property / flat as described / mentioned above to my above mentioned legal heirs Viz., My wife ______, My daughter_____ and My son______ and said property shall be transferred in their joint names. The percentage share in the immovable property shall be as under: 1. My wife) -80% 2. My daughter – 10% 3. My son – 10%. The cost and expenses for obtaining probate from court and transferring property in their joint names in property card shall be exclusively borne by my daughter and son equally on 50% - 50% basis without any dispute. Further, if they mutually decide to sale this immovable property after death of me but during life tenure of my wife then sale amount shall be shared / distributed as under: 1. My wife – 80% of sale amount. 2. My daughter – 10% of sale amount. 3. My son – 10% of sale amount. And if my daughter and son mutually decide to sale this property after death of me and my wife then sale amount shall be shared / distributed as under: 1. My daughter – 50% of sale amount. 2. My son – 50% of sale amount. OR If they mutually decide to rent out this property after death of me but during life tenure of my wife then rent amount shall be distributed as under: 1. My wife – 80% of rent amount. 2. My daughter – 10% of rent amount. 3. My son – 10% of rent amount. OR If my daughter and son mutually decide to rent out this property after death of me and my wife then rent amount shall be distributed as under: 1. My daughter – 50% of rent amount. 2. My son – 50% of rent amount. My question is 1.can I make such conditional will? 2. Do I need to make "Pedhi Namu" before Talati also as I am staying in Gujarat?