When I put a high number in the Net income field "spousal information" on the taxpayers info screen, it does block the transfers.  Maybe you are putting it on the spouse's tax return instead?  Or not using a high enough income?  The other place you can put it is on the Schedule 2 of the taxpayer, under All other income, use one of the blank lines.  If the file is set up properly, you should not even have a tax return for the non-filing spouse (the one that the other preparer is doing).  In my dummy file, if I try to switch to the spouse's return, it asks if I want to create a new return for the spouse.  You should uncouple the returns if you already have one for the spouse (under file, uncouple).