In other words, if they are supposed to be different companies, under what kind of agreement a company will give all its money to another company without getting anything in return? (biggerpockets.com)
It is a legal requirement for certain kinds of agreements to be in writing. (lawtrades.com)
Whether it would be a coalition, confidence - and - supply or some other kind of agreement is not addressed here; that is less important for policy than which parties are involved. (blog.politics.ox.ac.uk)