The Strategic Partner programme was set up in September 2012 to reward loyal brokers with exclusive marketing and processing benefits.
It measures Partners on the level of conversion rates achieved on initial submissions and conversion to successful loan completion.
The appointment of Glasgow-based Melrose comes in the wake of Shawbrook’s recent announcement that it has increased the loan sizes it will approve in Scotland.
Gillian Melrose, director of Melrose Commercial Finance, said: “I am extremely pleased that Shawbrook has recognised the value of Scottish business, as proven by the quality of deals we completed in Scotland in 2013.
“I’m also happy that they have decided to increase their limits on the Scottish property deals and will be considering loans up to £10m.”
Melrose is based in Scotland, yet its client base is spread across the UK.
Karen Bennett, sales and marketing director of commercial mortgages at Shawbrook Bank, said: “We’re thrilled to welcome Gillian to our growing team of Strategic Partners and hope that she is the first of many future Scottish members.
“Scotland is a region where we see a lot of potential, and we are dedicated to supporting Gillian and her fellow Scottish brokers with continued support and further product innovations. We look forward to more business coming from the area.”
The Strategic Partner programme roster has now grown from 18 to 40.