After a decade apart, a guilt-ridden Irish banker who is terminally ill must reveal to her American baseball star/ex-boyfriend that her preteen daughter is actually his, so she can die in peace.

Hi carllord,
Sounds more like a character arc than a logline to me. You have an internal development of the hero laid out here, but I am missing the main obstacle keeping the hero from achieving his goal. Since she's terminally ill, she should have a fairly easy time admitting this, or who else will take care of her daughter when she's gone? While the irony of the situation sounds great, I don't see where the main opposition is coming from, either internally or externally. Certainly no match against her impending death and leaving her little girl to fend for herself...

Dpg, is this logline version better?

Logline: After keeping her 10-year-old daughter's birth a secret, a terminally ill Irish banker must arrange for the young girl to meet her American father before she dies.

Dpg, I appreciate your feedback. I'll continue to refine and tweak my logline.