No, we can't. But there won't be any interceding with her, either. If she planned to do it out of goodwill, she would have done so by now.

She has what she wants already, at least as far as what we can offer. To turn her against it would take more leverage than we'll ever have. The cost is just too high.

[ because the only thing she can think of that would force lachesis' hand is atropos. there is no dealing with atropos, and to invoke her, if such a thing were even possible, would only bring an end to this world, and probably the rest of them with it. ]