My secondary residence has been squatted in. Can I evict the squatters myself?

No one has the right to take justice in their own hands. If an owner evicts a squatter himself, the latter may file a complaint against him for home invasion. As defined by the French Civil code (article 102), the home represents the place where the person has his main establishment. Now your secondary residence, which is not your home, has become the squatter’s home.