Any drawbacks to the household accounts? My wife and I plan to take my mother-in-law to London and return by ourselves. We have a combined total of 235k miles. 3 First class tix are 225k. We can fly home on another carrier.
By the way, mother-in-law will be staying with her family for a while, and she has never flown 1st on BA. So it should be a treat. How long might it take to put HHA through?