Yes it is, the couple can have common union or regime of separate properties . This is decided in the moment of contracting marriage and is drawn up by the notary the agreement.
2.1. Please describe the general principles: Which goods are part of community property? Which goods are part of the separate estates of the spouses?
It depends what parties are deciding
2.2. Are there legal presumptions concerning the attribution of property?
Yes
2.3. Should the spouses establish an inventory of assets? If so, when and how?
No
2.4. Who is in charge of the administration of the property? Who is entitled to dispose of the property? May one spouse dispose of/administer the property alone or is the consent of the other spouse necessary (e.g. in cases of disposal of the spouses’ home)? What effect does the missing consent have on the validity of a legal transaction and can it be pleaded against a third party?
Yes it can
2.5. Are any legal transactions made by one spouse also binding on the other?
Yes , especially in selling contracts of real property
2.6. Who is liable for debts incurred during the marriage? Which property may be used by creditors to satisfy their claims?
In each debt the bank is involving both sposes
