Alexander Hamilton didn’t own slaves. Neither did John Adams. James Madison and Jefferson did though. The federalist papers are not about slavery they are about forming an effective and long lasting government not susceptible to tyrannical leaders.
Alexander Hamilton didn’t own slaves.
Alexander Hamilton died a slave owner. He did not free his dozens of slaves.
https://www.jamesmadisonmuseum.org/slavery.html
After Madison's death, in 1836, Dolley Madison returned to Washington to live out the last years of her life. Financial conditions forced her to sell Montpelier in two parts (1842 and 1844). In order to keep the slave families together Dolley Madison chose to sell them along with the farm. However she retained some slaves for her use in Washington. These slaves were freed upon her death because of her failure to register them in the city. The historical record is not clear whether this was an error of omission or commission.