What’s the source that explains what a Seudas Mereyim is, for a mourner during his/her 12 months period after losing a parent? what is the number of people limitation on Shabbos regarding inviting or being invited for a meal?
thanks and regards
There is no set number of people for a seudas mereyim, and it depends on the nature of the relationship between the aveil and the person involved. If they are close friends, and the nature of the relationship is that they invite one another to their homes (one day one goes to his friend, and the next the friend comes to his), then it is a relationship of mereyim (Shach 391; Divrei Sofrim 391:11).
However, aside from the issue of a gathering of mereyim, there is a general problem of inviting and being invited during the twelve months (Taz, 389), and if invitations are made they should be done through spouses.