Q. Can my Mother in Law claim my wife as a dependent because she pays for her college tuition?
A. Simple answer: No. But taxes aren't simple. So the real answer is maybe, but not without, essentially, your permission.
It's complicated. For a full discussion, see https://ttlc.intuit.com/community/taxes/discussion/can-i-claim-my-daughter-who-got-married-on-decemb...
