The real estate appraiser or expert is a professional with appropriate academic training, accepted by the CMVM to carry out the activity and who carries out an assessment of a property producing a document called Real Estate Appraisal.
Property valuations must be carried out by professionals - appraiser or real estate expert - with a degree in: Real Estate Management, Engineering or Architecture, or in a relevant area linked to Real Estate Valuation; experience in Real Estate Appraisals; active registration with the CMVM. They must be registered with the professional association and have insurance.
Which expert assessors are duly accredited: http://web3.cmvm.pt/sdi/peritos/peritos.cfm