Three of Dublin’s best property assets are due to come on the market for a combined figure of €1.3 billion-plus following a deal was between Ronan Group Real Estate (RGRE), a leading Irish property development firm, and Fortress, the multibillion-dollar American investment fund. Fortress and RGRE, founded by Johnny Ronan, had been in a legal tussle since last October when the American fund moved to take over the interests of the Colony Capital, which had been the business partner for RGRE. However, the two sides have resolved their differences and plan to bring the three high profile property projects to…