The plural form of the surname Gillis is Gillises.
The plural of Shastri would be Shastris
If Hoix is a surname, then the plural is Hoixes
If Gelpi is a surname, then the plural is Gelpis.
The plural of the surname may be Simmons or Simmonses.
The plural of the surname Sarli would be Sarlis.
The plural of bràthair (brother) is bràithrean. (This would not be for the surname Brothers.)
A surname cannot be pluralized.
To make the surname Justiz plural, you would add an "s" at the end. So it would become Justizs.
According to the Better Business Bureau, Mullinax Ford in Florida does not have any outstanding complaints at this time. In the past 12 months, the Better Business Bureau reports that there have been 3 complaints against Mullinax Ford, all three of which have been closed. Also, the Better Business Bureau reports there are no government actions (significant) involving Mullinax Ford.
The surname Hester has the plural Hesters (two Hesters, or the Hester family).
The plural form of Hass is Hasses, e.g. All the Hasses were invited to the wedding.