S. 1796 (119th)Bill Overview

HART Act

Commerce|Commerce
Cosponsors
Support
Democratic
Introduced
May 15, 2025
Discussions
Bill Text
Current stageCommittee

Read twice and referred to the Committee on the Judiciary.

Introduced
Committee
Floor
President
Law
Congressional Activities
01 · The brief
Plain-English summaryWhat this bill actually does

The HART Act amends the Clayton Act’s premerger notification (HSR) regime to aggregate all residential property acquisitions by a person within a calendar year, making them count as a single acquisition for filing purposes. It narrows an exemption so transactions that include residential or investment rental property are not exempt, and directs the FTC and DOJ to revise regulations and issue rules on required forms, documentary materials, and information to assess competitive harms from such aggregated residential acquisitions.

Why people may split

Progressives prioritize limiting investor accumulation; conservatives worry about investment chilling.

Watch point

Relative to its intended legislative type, this bill is a clear and targeted statutory revision to premerger notification law concerning residential property, with specific statutory text and definitions and explicit delegation to agencies for regulatory implementation.

The HART Act amends the Clayton Act’s premerger notification (HSR) regime to aggregate all residential property acquisitions by a person within a calendar year, making them count as a single acquisition for filing purposes.

It narrows an exemption so transactions that include residential or investment rental property are not exempt, and directs the FTC and DOJ to revise regulations and issue rules on required forms, documentary materials, and information to assess competitive harms from such aggregated residential acquisitions.

Passage40/100

Targeted statutory change with tangible industry impacts and limited compromise features; plausible but uncertain without coalition or concessions.

CredibilityPartially aligned

Relative to its intended legislative type, this bill is a clear and targeted statutory revision to premerger notification law concerning residential property, with specific statutory text and definitions and explicit delegation to agencies for regulatory implementation. It integrates cleanly into existing statutory and regulatory structures but leaves significant implementation details to agency rulemaking and does not address fiscal impacts or establish oversight or timelines.

Contention75/100

Progressives prioritize limiting investor accumulation; conservatives worry about investment chilling.

02 · What it does

Who stands to gain, and who may push back.

Likely benefits vs burdens50% / 50%
Federal agencies · Housing marketLandlords · Housing market

These are examples from the analysis, not a ranked list of the most-affected groups.

Likely helped
  • Federal agenciesIncreases federal visibility into large or aggregated residential-property acquisitions across buyers.
  • Housing marketEnables antitrust agencies to more readily investigate potential market concentration in housing.
  • Potential benefitMay discourage rapid, large-scale purchases by institutional investors, potentially limiting consolidation.
Likely burdened
  • LandlordsAdds regulatory and paperwork burdens for individual buyers, landlords, and small investors.
  • Potential burdenMay slow or complicate ordinary residential transactions due to additional filing requirements.
  • Housing marketCould deter some investment in rental housing, potentially reducing available capital for housing supply.
03 · Why people split

Why the argument around this bill splits.

Progressives prioritize limiting investor accumulation; conservatives worry about investment chilling.
Progressive90%

Likely supportive; sees the bill as closing a regulatory gap that lets large investors accumulate housing without antitrust scrutiny.

Views aggregation and documentary requirements as tools to limit speculative buying and protect housing affordability and local ownership.

Leans supportive
Centrist70%

Cautiously favorable but pragmatic; supports oversight of concentrated ownership while wanting careful rule design.

Would weigh compliance costs and unintended impacts on rental supply, capital flows, and small landlords.

Leans supportive
Conservative15%

Likely opposed; views the bill as expanding federal regulatory oversight into ordinary real estate transactions.

Sees aggregation and new documentary rules as burdensome, potentially chilling investment and increasing bureaucracy.

Likely resistant
04 · Can it pass?

The path through Congress.

Introduced

Reached or meaningfully advanced

Committee

Reached or meaningfully advanced

Floor

Still ahead

President

Still ahead

Law

Still ahead

Passage likelihood40/100

Targeted statutory change with tangible industry impacts and limited compromise features; plausible but uncertain without coalition or concessions.

Scope and complexity
52%
Scopemoderate
24%
Complexitylow
Why this could stall
  • No cost estimate or CBO score included
  • How HSR monetary thresholds interact with aggregation rules
05 · Recent votes

Recent votes on the bill.

No vote history yet

The bill has not accumulated any surfaced votes yet.

06 · Go deeper

Go deeper than the headline read.

Included on this page

Progressives prioritize limiting investor accumulation; conservatives worry about investment chilling.

Targeted statutory change with tangible industry impacts and limited compromise features; plausible but uncertain without coalition or conc…

Unlocked analysis

Relative to its intended legislative type, this bill is a clear and targeted statutory revision to premerger notification law concerning residential property, with specific statutory text and definitions and explicit de…

Go beyond the headline summary with full stakeholder mapping, legislative design analysis, passage barriers, and lens-by-lens tradeoff breakdowns.

Perspective breakdownsPassage barriersLegislative design reviewStakeholder impact map
Open full analysis