The CPCV locks price, parties and forfeits — commonly 10–20% sinal, doubled back if the seller walks. Between CPCV and escritura: the registry certificate, the caderneta predial, the utilisation licence and the energy certificate. No licence, no deed.
IMT on a €350,000 investment purchase is about €15,300 plus €2,800 of stamp duty — both payable before completion, both on the buyer. A primary-residence buyer pays materially less; confirm which table you sit in.
Lease-risk check: sitting tenants under old contracts still surface in historic stock. The registry certificate shows charges; only the tenancy file shows the tenant.