This bill targets large investment firms—specifically hedge funds and similar entities managing at least $50 million in assets—that buy up single-family homes. It creates two main financial penalties to discourage this practice.

First, when these investment firms purchase a single-family home, they must pay a new tax equal to either 15% of the purchase price or $5,000, whichever is larger. Second, the bill sets a limit on how many homes these firms can own. If they exceed their allowed number of homes in a given year, they pay an additional $5,000 per excess home. The allowed number is based on how many homes they owned when the law takes effect, with some flexibility built in for firms that are new to the business.

The bill also prevents these investment firms from claiming certain tax deductions (like mortgage interest deductions or depreciation deductions) on homes they own if they're subject to these new penalties. There are some exceptions—the penalties don't apply to nonprofits, home builders selling homes they construct, or homes that are foreclosed properties or used as personal residences by the firm's owners. The goal is to make it less profitable for large investment firms to buy up residential properties, potentially making homes more available and affordable for individual homebuyers.