Recording is the requirement people fail. Section 9 provides that a transfer on death deed must contain the essential elements and formalities of a properly recordable inter vivos deed, must state that the transfer to the beneficiary is to occur at the transferor's death, and "must be recorded before the transferor's death in the public records in [the office of the county recorder of deeds] of the [county] where the property is located." A signed deed sitting in a drawer is not a transfer on death deed. Arizona's beneficiary deed statute says the same thing in its own words: such a deed "is valid only if the deed is executed and recorded as provided by law … before the death of the owner or the last surviving owner."
It cannot be revoked by your will, and that is deliberate. Section 11(a) provides that an instrument revokes a recorded transfer on death deed "only if" it is a later transfer on death deed revoking it expressly or by inconsistency, an express instrument of revocation, or an inter vivos deed expressly revoking it — and only if that instrument is acknowledged after the deed being revoked and itself recorded before the transferor's death. Section 11(c) adds that once recorded, the deed "may not be revoked by a revocatory act on the deed", so destroying the paper achieves nothing. The act's Comment explains the reasoning: "revocation by an instrument not specified, such as the transferor's will, is not permitted", because a transfer on death deed operates on real property, "for which certainty of title is essential", and that certainty would be impossible if an off-record document such as a will could revoke a recorded deed. Arizona reaches the same result in an enacted statute: a beneficiary deed "is not revoked by the provisions of a will."
During the owner's life the deed does nothing at all, and section 12 lists the six things it does not do. It does not affect an interest or right of the transferor or any other owner, "including the right to transfer or encumber the property"; does not affect the transferee's rights even with notice; does not affect a secured or unsecured creditor or future creditor of the transferor; does not affect "the transferor's or designated beneficiary's eligibility for any form of public assistance"; does not create a legal or equitable interest in the beneficiary; and does not subject the property to claims of the beneficiary's creditors. The Comment to that section spells out the practical consequences most owners actually worry about: the deed does not "sever a joint tenancy or a joint tenant's right of survivorship; trigger a due-on-sale clause in the transferor's mortgage; trigger the imposition of real estate transfer tax; or affect the transferor's homestead or real estate tax exemptions."
On the public-assistance point, read the section and stop there. Section 12(4) addresses eligibility during the transferor's life, and its Comment says "including Medicaid", while noting that the drafting committee "specifically disapproves of the contrary approach" taken by one state's statute — so even this limb varies. It says nothing about recovery against the property after death, and section 15 makes the property reachable for allowed claims, so any question about whether a transfer on death deed puts a house beyond a state's estate recovery is a question for a lawyer in that state rather than one this page can answer.
At death the beneficiary takes the property as it is, not as they hoped. Section 13(b) provides that "a beneficiary takes the property subject to all conveyances, encumbrances, assignments, contracts, mortgages, liens, and other interests to which the property is subject at the transferor's death", and deems the deed's recording to have occurred at that moment for those purposes. The mortgage does not disappear. Section 13(d) adds that the deed "transfers property without covenant or warranty of title even if the deed contains a contrary provision", so the beneficiary gets no title guarantee from the transferor's estate. Arizona's statute is to the same effect on encumbrances.
Survivorship title beats the deed. Section 13(c) provides that if the transferor is survived by one or more other joint owners, the property "belongs to the surviving joint owner or owners with right of survivorship", and the transfer on death deed is effective only if the transferor was the last surviving joint owner. Arizona says the rights of a surviving joint tenant or a surviving spouse in survivorship community property "shall prevail over a grantee beneficiary named in a beneficiary deed."
Lapse, and no survivorship among beneficiaries. Section 13(a)(2): "the interest of a designated beneficiary is contingent on the designated beneficiary surviving the transferor. The interest of a designated beneficiary that fails to survive the transferor lapses." Concurrent beneficiaries take "in equal and undivided shares with no right of survivorship" under (a)(3), though (a)(4) reallocates a lapsed share among the others where two or more were named for concurrent interests.
Creditors and family allowances can reach it, and states did this two different ways. Section 15 offers two alternatives. Alternative A defers to other state law, such as Uniform Probate Code section 6-102, under which recipients of non-probate transfers can be required to contribute toward allowed claims and statutory allowances where the probate estate is insufficient. Alternative B, for states that did not adopt that comprehensive approach, provides that "to the extent the transferor's probate estate is insufficient to satisfy an allowed claim against the estate or a statutory allowance to a surviving spouse or child, the estate may enforce the liability against property transferred at the transferor's death by a transfer on death deed", apportioned among multiple properties in proportion to their net values, with a deadline for commencing the proceeding that each state fills in for itself.