Will this be considered as multi-account issue

If account A transfer his airline through stock market to account B and stop playing, will B which now holds his own airline and the airline transferred from A as multi-account and violate the game rule?

before:

…account A…account B

… | …|

…airline Ax … airline Bx

after:

…account A…account B

… | …/…\

…no airline…airline Ax…airline Bx

when this accounts belongs to two different players there is no problem