This question already has an answer here:
I have an imported save from ME1 and 2.
- I've saved Legion,
- Tali was not exiled,
- I destroyed the heretics,
- I brokered a peace between Tali and Legion,
- I completed Rannoch: Admiral Koris and saved Admiral Koris
- I have 4 bars of Paragon
However, I still don't get the option to be able to make peace between the Geth and the Quarians.