Is it a prohibition or just bad practice to write away all of one's property to someone else

Analysis of how we view the concept of "umdana" - the assumed intention a person has when they make a claim or decision

The true halachic meaning of a father writing all of his property to one of his sons

We should not learn practical halachic observance from actions of holy people, only from their halachic rulings

The land of Israel is not a regular piece of land and our connection to it is unlike a regular landowners connection to their property!

What makes a relative invalid to testify and up to how many generations removed does this invalidation apply?

Does a father have to declare and point out who actually is his firstborn son?

How could Yaakov give away the firstborn portion that was due to his son Reuven?

How to view the money sitting in the bank accounts of the father when he passes away. Does the firstborn have access to this money with the double portion?

Does a firstborn also have rights to double of any increase in value to the property after the father has passed away?