Over the last decade, the “all hands, all lands” approach has gained prominence as a means for restoring forests and grasslands in the American West at the landscape scale. This approach means that land owners, managers, and stakeholders with management interests in a shared landscape jointly plan and/or implement forest management activities to achieve common goals. Ideally, best available science guides the strategic placement of restoration treatments in a manner that optimizes desired outcomes. Yet landscapes in the American West often consist of a mosaic of different land ownerships owing to the way in which property rights historically developed.  Implementing an all lands approach is challenging because it requires land owners, managers, and stakeholders with diverse interests, management approaches, and capacities to act collectively. Science-based restoration treatments in multi-ownership landscapes will only be successful if they are socially feasible and the benefits outweigh the costs. This talk draws on research from Oregon and California to identify social factors that are important for successful all hands, all lands approaches to wildfire hazard reduction. These include supportive policy, funding for restoration on multiple land ownerships, strategic partnerships, common acknowledgment of existing wildfire hazard, intermediary organizations to increase capacity, strong outreach and communication, and local business capacity.