this is getting confusing as there are two quitclaim deeds
suggest reading this post as a guide; Paula has posted a lot and I find she knows what she is talking about.
https://ttlc.intuit.com/community/tax-credits-deductions/discussion/how-do-i-calculate-the-basis-on-...
the article indicates that the portion of ownership that was retained by MIL (and by the 'someone' in the QCD before that can be stepped up at death.
