[aMorePerfectUnion]

... If she wasn’t a saint when she died, she won’t become one after death.

[Salvation]

The Catholic Church looks at sainthood much more closely. For your information and study:

There are three steps to sainthood -- being pronounced, vernerable, blessed and saint.

It involves time and study. Please read the following links for more info.

SAINTHOOD 101: Rules for Becoming a Saint [Catholic Caucus]
The Process of Becoming a Saint (Canonization) [Catholic Caucus]
Pope Lists Criteria for Causes of Canonization