In Oregon, "joint tenancy with right of survivorship" in real property was abolished. What you and your Mom are is co-tenants with cross-contingent remainders what is known as an "Erickson estate" after the Oregon Supreme Court case that created this type of ownership. Without research, I can't be completely positive, but I think your answer is that your mom can quit-claim her life tenancy, but she cannot destroy the survivorship interest. So, all the grantee in her deed gets is the co-tenant's rights to the property while your mother is alive.
Answered on Jul 14th, 2013 at 9:59 PM