If I remember correctly, each book in the series had a name that starts with "Re", e.g. "Rebellion", "Retribution", "Restitution", "Restoration".
The earth had been invaded by a race of very human-like blue-skinned (or green-?) aliens. These aliens had a matriarchal society (basically all the traditional gender roles were swapped), largely because the women were strong telepaths, but the men were much weaker in that regard. However, the lead character, Jason, is immune to their telepathy (discovered later to be due to his ancient ancestral heritage, which involves other perks as well), and he leads a (primarily) economic rebellion to take back the earth. Jason is also a brilliant engineer and creative, so he's able to figure out tricky ways to make life hard (expensive) on the aliens, without creating all-out war.
Telepathy and space travel play significant roles in the story. I think the strongest telepaths (who had (almost) all died out) were from the Karenin (sp?) clan.
Does anyone recognize the stories? Can you direct me to where I can find them?