Acquiring property from sister

Gift deed is like your sister or her children can claim back antime. if you are paying for property then buy it through a registered sale deed

It is always advisable to acquire the property by a registred sale deed in order to avoid future litigation, that may arise for any reason at a later stage.

A little more expenses towards the stamp duty at this stage may enable you to avoid big expenses or loss at a later stage if a litigation arises.

Yes,  It is best to go for registration of the sale deed to avoid legal complications in future.

One more situation came up. I may not be able to hold on to the property as I will require funds for another necessity and will look for a future buyer at the earliest.

I will anyway be paying full consideration to my sister. Can I get a registered sale gpa from her?

If I get a gpa, what happens if she passes away or I do?

The GPA whether unregistered or registered document will not confer title to the property to the holder, if she passes away then the GPA will stands cancelled automatically.

Do not get into such ideas which will cause you more loss and damages.