The Irish Strategic Investment Fund (ISIF) has taken a stake in Staycity, the serviced apartments provider for short and long-term travellers, after making a €30 million investment. The investment by Ireland’s sovereign wealth fund is a mixture of debt and equity. The valuation placed on Staycity, which operates nearly 3,000 apartments across 12 European cities, is about €100 million. Separately, Staycity refinanced over the summer at par a €22.5 million financing deal agreed with alternative lender Dunport Capital.  The Dunport loan was announced only in January and intended to be used for expanding the business. With Covid-19, Staycity decided to…