That is a dubious status for Fr admin, you need something the admin understands, an official paper trail of some sort.
The process for WARP renewals is not yet known, but you are likely to need the following: Bank statements from previous 3-12 months, copy of your current WARP, proof of health coverage ‘attestation de droits’, proof of residence, proof of income, tax return, copy of passport.
thanks Angela that’s good to know !
Just read this article.
But haven’t found anything more recent.
If it does apply to WARP, just entry onto the territory for a few days would apparently be sufficient.
If you break residency then you have to start from zero again. No one knows what investigations are done for nationality, but they are more in depth than for a carte de séjour so this could be picked up. A lot is via attestations sur l’honneur and your income records.
That is what many immigration specialists say.