I am leading a multi-facility high-contrast imaging survey of the most promising young, nearby accelerating stars to efficiently discover new long-period planet and brown dwarf companions. The highlight of this program has been the discovery of AF Lep b with the NIRC2 camera at Keck Observatory. With a dynamical mass of $3 \, M_\mathrm{Jup}$ and semi-major axis of 9 au, it is the lowest-mass imaged exoplanet with a direct mass measurement. This is an exciting addition to the small sample of directly imaged planets! The planet shows evidence of spin-orbit alignment, enhanced atmospheric metallicity, a circular orbit similar to other imaged planets, and a potential delay in its formation revealed by its dynamical mass. These lines of evidence suggest that the planet likely formed through core accretion.