18.A person (which includes a body corporate, such as a company) who caries out “lettings work” (as defined in section 10) in respect of that dwelling on behalf of a landlord needs to be licensed to do so for the area in which the dwelling is located. An unlicensed person who carries out such work on a landlord’s behalf commits an offence punishable by a fine (unless that person can satisfy a magistrates’ court that they had a reasonable excuse for not being licensed).