Are the following two sentences correct, considering S-V agreement?
All she has are a house, a car and a job.
All she has is a house, a car and a job.
I tend to think the first makes more sense as the items mentioned together form a plural that requires a plural verb. This is even clearer if we reverse the order of the first sentence as follows:
A house, a car and a job are all she has.
However, for some reason, my mind still accepts is. Maybe because it can still regard all as a single entity or a group of things taken together.