I live abroad and, due to health issues, I can no longer travel. My parent recently died (in the U.K) and I am named co-executor along with my sibling who is currently in the U.K. My sibling, who has a track record of not being trustworthy and has attempted fraud in the past, is not replying to my emails. My attorney here has suggested I get a solicitor in the U.K. to do my duty (stand in for me) as executor. Is this even possible?