This version of your logline raises more questions than it answers.
Why does the mining company need external workers, are the locals on strike? (I doubt miners would sit idly by while strike breakers take their jobs.)
Why is the town dying? Where there are billionaires, there are jobs. Billionaires love to build monuments to themselves. Houses, museums, theaters.
Establishing a new business is not a frantic effort. It takes planning, lots of planning. Years go by.
?
Try to give your heroin a manageable, concrete problem to solve and connect the way she solves it to her character flaw.
Also, loglines work best without proper names cluttering them up. So drop "Tim" and unless "Hope" is a real town, you can drop it as well.