If X was the title holder to the property with clear and marketable title then after it was transferred to Y after his lifetime, it shall devolve on Y's heirs, i.e., on A the lone survivor of Y, upon the intestate death of Y.
1. If A is reported to have died intestate then the property shall devolve on his own legal heirs as specified in the law.
2. The provisions of Indian succession law shall be applicable.
Scenario 2;
1. Now upon the death of A, who had transferred the property by a testamentary disposition i.e., by a Will to his wife B, she shall be the absolute owner of the property by virtue of the Will.
Scenario 3:
1. The bank cannot take the property into their custody if the property was not given as a collateral security by the guarantor, the bank has to approach seeking attachment of the property lying on her name for the reasons that the bank may rely upon.
2. P & Q has no role to play in this because they do not have any rights or interests in the property especially when the property was bequeathed to Mrs. B through Will.
Senario 4:
Under the question of scenario 1 the property devolves on all the legal heirs of deceased A, however under scenario, Mrs. B becomes an absolute owner of the property by virtue of the Will as a beneficiary of the said Will.
Scenario 5:
1. Until it is not known that the said document is a legally valid one, no opinion can be rendered, if it was just a piece of paper without any legal value to it, then L's claim over the movable assets may not be maintainable especially if the legal heirs challenge the same in court of law.
2.It is pertinent to peruse the document to render any further opinion on that.