Explain undue influence with an example

What will be an ideal response?

Undue influence occurs when one person (the dominant party) takes advantage of another person's mental, emotional, or physical weakness and unduly persuades that person (the servient party) to enter into a contract. The persuasion by the wrongdoer must overcome the free will of the innocent party. A contract that is entered into because of undue influence is voidable by the innocent party.
Example: Mr. Johnson, who is 70 years old, has a stroke and is partially paralyzed. He is required to use a wheelchair, and he needs constant nursing care. Prior to his stroke, Mr. Johnson had executed a will, leaving his property upon his death equally to his four grandchildren. Edward, a licensed nurse, is hired to care for Mr. Johnson on a daily basis, and Mr. Johnson relies on Edward's care. Edward works for Mr. Johnson for two years before Mr. Johnson passes away. It is later discovered that Mr. Johnson had executed a written contract with Edward three months before he died, deeding a valuable piece of real estate to Edward. If it is shown that Edward has used his dominant and fiduciary position to unduly influence Mr. Johnson to enter into this contract, then the contract is invalid. If no undue influence is shown, the contract with Edward is valid, and Edward will receive the property deeded to him by Mr. Johnson.