1. To what extent could the Certificate be registered in your Land Registry? Is this Certificate enough for the registration of ownership (or other rights in rem) in the name of the heirs (or legatees)? Otherwise, which other additional documents or complementary requirements would be needed?
A certificate itself cannot be registerd in Land Registry. Only rights that result from it are registered in Land Registry. This certificate, issued by notary is enough for regsistration of ownership.
2. In particular: for the purposes of registration, if the interested parties have complied with a Certificate of Inheritance adequately, will sharing out or distribution of estate deeds be also necessary?
Yes, the distribution of estate deeds are necessary if not negotiated otherwise.
3. In the event that the Certificate cannot be used for purposes of registration at all in your LR system, please let’s know the legal reasons.
There are no reasons why Certificate of Inheritance could not be used for purpose of registration of rights in rem.
4. May the Certificate be rejected by your registration authorities in the event of inadequate completion, mistakes or inaccuracies?
If such mistakes arrise, registration of ownership can, of course be refused, although, such occurences are extremely rare if non-existent.
5. For the certificate to be effective for the distribution of the estate and its registration, should this document be issued by national notaries or other practitioners or could it be issued by foreign notaries?
Certificate of Inheritance is issued by national notaries only. If duly certified, certificates from foreign authorities can be used.