Source: Alone, Lisa GardnerShe told him (her father) about Prudence. He didn't comment. She told him about Tony Rocco. She told him the police thought she'd arranged for Jimmy's death and that her father-in-law would stop at nothing to get Nathan.
Background: Her father gave her shelter after a series of tragedies. She told him how her father in law was making her life miserable in order for her to hand over custody of her son.
Can I use "would spare no effort to get" in place of "would stop at nothing to get"? Does "spare no effort" have a slight positive connotation that would be out of place in this context? Thanks