The estate agency, which froms part of the Skipton Group, will offer CII training to agents throughout its 500 branches in the UK.
All individuals awarded the mortgage qualifications will also subsequently become members of the Society of Mortgage Professionals - something which Connells Group chief executive, David Livesey, said has swung the vote firmly in its favour.
He added: "The CII qualification and membership complements our rigorous in-house training and development scheme and our commitment to excellent customer service."