‘Essue’ is a surname held by people of Black Carribean descent. This surname is very rare and was originated in a Spanish speaking town on the Jamaican islands. It is a Jamaican surname, only people who are Black Carribean, Black Hispanic or Mixed with either of those hold this family name. It is an extremely ethnic surname.
Person 1: “how do you pronounce your surname? where is it from?”
Person 2: “you pronounce it as if you are saying S-U, but it’s ‘Essue’ and it is from Jamaica.”
"Mi casa es su casa" (formal) is Spanish for "My house is your house" a common saying to invite someone into your house and allow them to make themselves at home. It also carries a implied sexual connotation of granted permission to have intercourse during your stay.
As in Atlas Shrugged(movie):
EllisWyatt: There are several guest rooms upstairs help yourself...(evening valedictions)...Mi casa es su casa and so on.