My brother-in-law convinced his parents to sign over their home and savings to buy a $3 million compound. Do I intervene?

The brother-in-law has convinced his parents to give up their home and savings to purchase a lavish $3 million compound, a decision that could leave them with monthly mortgage payments of $10,000 to $14,000. This move could jeopardize their financial security, potentially leaving them with insufficient funds for essential needs like healthcare and retirement. Such a significant financial shift raises ethical questions about the brother-in-law's influence and the parents' capacity to make such a life-altering decision, making it a critical issue that could have long-lasting implications for the family's future.