Difference between memorandum & undertaking

Can  U come out with details,objective type questions will not be answered.

Actually I'm getting seperated from my father & getting my share of property. My father is gifting me a property & simulataneously wants me to sign an Memorandum of Family Arrangement/ Settlement . Besides relinquishment deed & dissolution deed in firm which i'm partner with him. I don't want to go for that MOU as there are adverse things against me in it.  I agree to all other instrument except MOU. I'm telling him to take an undertaking or affidavit from me that I will not demand anything extra from him after getting my share. Nor my legal heirs etc. That's the  reason I'm asking the diff. What sh'd I do ?

MOU is entered only if both the parties agree to the contents.An undertaking is a pledge or promise to adher to the conditions or contents mentioned in it..pledge, agreement, promise, oath, covenant, vow, word, word of honour, solemn word, bond, commitment, guarantee, assurance,warrant, contract, compact comprise an undertaking.

Well answered and I endorse the same.