Mortgage specialist Resimac Group has entered the asset finance market, acquiring a controlling interest in finance company IA Group.Resimac announced that it will pay A$6 million for 60 per cent of IA Group, which has principally-funded receivables of $50 million. It has an option to acquire the remaining 40 per cent.IA Group has been around since 2001 and describes itself as a fintech, although there is no evidence to suggest it is anything more than a conventional finance company.Resimac chief executive Scott McWilliam said in a statement: "Our investment in IA Group allows us to fulfil a key part of our growth and diversification strategies. It allows Resimac to gain synergies from our existing distribution network and provides the platform for Resimac to enter the asset finance market."Resimac is going through a period of transformation. Earlier this month, it announced that it would focus on selling self-funded products and would stop selling non-principally funded loans.