Two Proposals, One Problem, Very Different Solutions
Here's what Tuesday's State of the Union didn't tell you: when Donald Trump called on Congress to ban institutional investors with more than 100 homes from buying more single-family properties, Democrats sat down — not because they oppose the idea, but because they'd already introduced a version of it that actually has teeth [1]. The American Homeownership Act, introduced February 25 by Senator Elizabeth Warren alongside Bernie Sanders, Ed Markey, and thirteen other Senate Democrats, isn't a future purchase ban. It's a tax code rewrite. The bill would strip institutional investors owning 50 or more single-family homes of the depreciation deductions and mortgage interest write-offs that make bulk buying profitable in the first place. It also bars those investors from accessing federally backed mortgages — the same taxpayer-subsidized credit lines that have helped them compete against regular homebuyers at thousands of listing appointments across the country [2].\n\nTrump wants to stop the bleeding starting at 100 homes. Warren wants to drain the wound. These are not the same proposal.
To understand why the tax angle matters more than the purchase ban, you have to understand how corporate landlords actually became landlords at this scale. After the 2008 financial crisis, private equity firms acquired single-family homes at foreclosure-sale prices, often in bulk, and converted them to rentals. The returns were good. Then they discovered that the IRS treated residential rental property like any other depreciable business asset — you can write off a house over 27.5 years, generating paper losses that offset real income. Add in mortgage interest deductions on properties financed with near-zero-rate federal money, and the math became almost irresistible [3]. A future purchase ban doesn't touch any of that. It doesn't make the 50,000 homes Invitation Homes already owns less profitable. It doesn't reduce the incentive to hold what they have. Warren's bill does both: eliminate the tax advantages on existing portfolios and cut off the federally backed financing pipeline. The investor calculus changes overnight.


