The Secret Stark

Amillia and Olivia are the children of tony and pepper stark. After both were kidnapped as babies tony was able to rescue Amillia when she was four but found evidence that Olivia was dead so he assumed that he was only able to save one of his daughters even though Amelia was only at Hydra for a short they were both experimented on and given certain ability.
Olivia was later able to escape hydra when she was seven and fled to new york where she was put into the system and fostered by the parkers when she was eight.
A few years later Olivia started trying to help the people of her city do the odd small job never really being noticed before her and Peter became a crime fighting duo after that all anyone could talk about was the vigilantes protecting them. Years later a new vigalante shows up with some powers simular to Olivia's and also happens to be tony starks daughter.
will olivia be reunited with her family?
what will she loose in the process?

disclaimer I don't own marvel as much as I would love to, I don't.