1. self acquired

2. in the sale deed to be executed for purchase of the property in future, it can be stated that the property is bought in the joint names of the son and mother. however the mother's name is added in the sale deed as a co-purchaser only for sake of convenience and by way of mutual family arrangement. for all intents and purposes the son will be the absolute owner of the property and on demise of the mother, her share will devolve on the son by survivorship and not by intestate succession to her legal heirs. this will serve your purpose

if the above is stated in the sale deed itself then any legal heir of your mother will be precluded from claiming any right in her share

3. there is no need to register the agreement as by such an agreement there is no transfer of property happening. its merely an agreement between the son and the mother as to how the property to be purchased in the joint names of the son and mother is to be dealt with upon the demise of the mother. so this agreement can be simply notorised. if you want it to be registered then no harm for that too

no the sub-registrar cannot refuse to register the agreement. he just has to see that proper duty is paid on the agreement [which will be nominal] and the parties who have signed the agreement are before him and have admitted their respective signatures on the document 

1) it would be treated as self acquired property 

2) legal heirs cannot claim share after execution of  the agreement 

3) deed of family settlement can be entered into 

Dear Client, 

Firstly, the half share of your biological mother will be treated as self-acquired property as the question of how your biological father got the property is not clear. Secondly, if there is an agreement explicitly mentioning the condition of other legal heirs not having any share, the legal heirs can not claim them. With respect to the agreement, MOU is the best option as a settlement agreement can only be made when there is a dispute.

Thank you.

1. The half share of property on the name of your biological mother shall be her self acquired and her own and absolute property. 

2. If the agreement is for valid consideration and executed by a registered deed then it would be legally valid and enforceable. 

Any challenge in this regard by any vested interest may not be maintainable. 

3. You can get the property transferred by a conditional gift settlement deed. 

Registration of non existing property may not be entertained. 

1. Self acquired. 

2. If self acquired then no. 3. Gift deed

1. Self acquired property 

2. Since the said property come under the self acquired tag , then she having her right to transfer the property to you and none having right to claim over the same. 

3. Conditional gift deed 

There is no such property in existence 

no need to register it 

MOU is binding on parties 

1. An unregistered agreement cannot be enforced in court of law. 

2. Read the above answer. 

The contract cannot be enforced through court if the same has not been executed by a registered deed. 

Dear Client, 

It is not mandatory to get such an agreement and secondly, it will be binding on both the parties and legally valid. 

Thank you

1. Yes

2. Registration is mandatory