Moody's has also changed the outlook on the UK life and Italian life insurance sectors to negative.
ReSolution is the holding company of a group of managing general agents based in London.
The appointee has 23 years of experience in the insurance industry.
The executive will assume the new role of head of speciality North America for Willis Re.
The Bermuda-based legacy re/insurer has completed its first acquisition in Asia.
Fitch doubts its ability to successfully execute the sale in the current volatile crisis market environment.
SCOR Specialty Insurance continues to build its capabilities in political and credit risks business line.
Recession has taken hold in Europe at a time when the speculative-grade market is already vulnerable.
The company will also withdraw its listing with the Bermuda Stock Exchange prior to July 31.
The company aims to seize the opportunity created by the withdrawal of large number of players from the market.