Domino, Kitkat, and Opie

Domino, Kitkat, and Opie were some of the horses that lived on the property of Sammy Monk. They were said to be the favorites of Max Einstein while she squatted there with the other homeless people.

Early Life
They were born sometime before 2018, and at one point were sold to a landowner called Sammy Monk where they resided in his stables, hauling carriages around Central Park.

Meeting Benjamin Abercrombie
After the estate was bought by benefactor Benjamin Abercrombie, he found most of the horses new homes upstate in barns, fields, and oats. However, Domino, Kitkat, and Opie remained there not having to do any work. When Maxine Einstein moved in to her apartment, commented that they were her favorites.

Max Einstein
They had an apparently good relationship with each other, as Max considered them her favorites.

Benjamin Abercrombie
They, presumably, tolerated their new master because he did not make them do any work.