Equistone-backed FirstPort, the UK’s largest residential property manager, completed the merger with Mainstay Group, a property and asset manager. Financial terms were not disclosed. “I am delighted to announce that our transaction to acquire Mainstay has completed and that we will now be joining forces to deliver the very best property and asset management services for our customers and clients. I am excited to see how we will learn from each other and work together to drive the highest industry standards and realise new market opportunities,” Nigel Howell, FirstPort CEO.