If your sister transferred money or property to you, the transfer can be challenged later — by another relative, by a creditor, or by the executor of your sister’s estate after she dies. The usual claims are that your sister lacked capacity, that she was unduly influenced, or that the transfer was never meant to be a gift at all. Most of those claims succeed or fail on the paperwork. This page explains what to put in place before the transfer, how to move money and real property so that the record speaks for itself, and what to do if someone contests the transfer anyway.
Before anything changes hands, you and your sister should agree on the character of the transfer. Is it a gift, a loan, or a sale for adequate consideration? A sale for adequate consideration means your sister receives something of equivalent value in return. If she receives nothing, it is a gift, and you should ask a lawyer whether a gift tax return is needed. A return is usually required when a gift to one person who is not the donor’s spouse exceeds $19,000, the 2026 annual exclusion.
A written agreement that states which of the three it is removes the most common source of confusion. Loans get contested as gifts, gifts get recharacterized as loans, and “payments” for care or services get treated as gifts, all because nobody wrote down what the parties intended at the time.
Most challenges to a transfer allege that it was unauthorized or the product of undue influence, and that requires showing that your sister was susceptible to being influenced. The challenger will subpoena medical records to see whether your sister had an illness affecting her brain function or was on mind-altering medication when the transfer was made. Even a person with periods of unsoundness of mind can have lucid intervals during which a transfer is valid, but you do not want to be litigating over which interval the signing fell in. Make the transfer at a time when your sister plainly has capacity.
When your sister is elderly, a few additional precautions strengthen the transfer. Use a clear, simple writing that she can understand. Hold the discussion at the time of day when she is at her best, typically the morning, and not when she has recently been hospitalized, is sedated, or is in significant pain. With her consent, have other family members present to witness the discussion, and consider asking her regular physician to document capacity at the time. Allow time for reflection; a transfer preceded by discussion is far harder to attack than a sudden one. Finally, have your sister record her reasons for the transfer in her own words.
The terms of the transfer belong in a written contract. If it is a loan, the contract should state the interest rate and the payment terms, preferably with a promissory note. If it is a gift, your sister should sign a deed of donation stating that the gift is unconditional, and you should sign it to confirm acceptance. Have the document acknowledged before a notary, which strengthens its credibility when it is challenged in court, and file a gift tax return if one is required. Anyone who later questions the gift must then argue that it was not your sister’s intention to give it, despite a notarized deed of donation and a gift tax return saying otherwise.
For a significant transfer, the following safeguards build on the written agreement. Each one adds a witness or a contemporaneous record of your sister’s capacity and free will.
| Safeguard | What it adds |
|---|---|
| Written agreement | States the nature of the transfer, the parties, the property, the date and any conditions, whether the transfer is a gift, loan or sale. |
| Notarization | The notary verifies your sister’s identity and observes the signing; the notarial certificate is contemporaneous evidence of capacity and free will. |
| Two disinterested witnesses | People with no stake in the transfer who can later testify to your sister’s apparent capacity and the circumstances of the signing. |
| Independent counsel for your sister | A lawyer of her own choosing. The attorney’s notes and the fact of independent representation are powerful evidence against a later challenge. |
| Medical evaluation | For larger transfers or an elderly transferor, a contemporaneous capacity evaluation by a physician or psychologist documents her mental state at the time. |
| Video recording | A recording of the signing showing your sister’s apparent capacity and the absence of coercion. |
| Recitation of reasons | Your sister explaining, on video or in a contemporaneous writing, why she is making the transfer. |
The best way to transfer money is a bank-to-bank transfer that shows the originating and receiving accounts. Add a memo line or transfer description explaining what the transfer is, keep any email confirmation, and keep the account statements from both accounts showing the transaction. That paper trail proves the transfer happened, when, and between whom, without relying on anyone’s memory.
Cash is a problem. Without bank records, the only proof of a cash transfer is the parties’ testimony, which is exactly what a challenger attacks. If cash or a check must be used, signed acknowledgement receipts and witness signatures help, but a bank transfer is strongly preferred.
Real property is transferred by a deed, recorded in the county where the property is located. The formalities are more involved than for money, and skipping any of them creates a problem later: an unrecorded deed is vulnerable to a subsequent transfer of the same property, unfiled tax forms draw penalties, and a new owner without title insurance is exposed to title defects.
| Step | Why it matters |
|---|---|
| The deed | Properly drafted, executed and notarized. |
| Recording | Recorded with the county where the property is located; recording gives public notice of the transfer and protects against later claims. |
| Transfer tax filings | Real Property Transfer Tax (RPT) filings where a transfer tax applies, including NYC RPT filings for property in New York City. |
| Form RP-5217 | The Real Property Transfer Report filed with the New York State Department of Taxation and Finance. |
| Mortgage payoff or assumption | Required if the property has existing financing. |
| Title insurance | Protects your ownership interest going forward. |
The annual exclusion, $19,000 per recipient for 2026 and adjusted annually, lets your sister give you up to that amount each year without using any lifetime exclusion or paying gift tax. A gift above the annual exclusion requires a federal gift tax return, Form 709, even when no tax is due because the gift falls within the lifetime exclusion. That lifetime exclusion is $15 million per person for 2026 under federal law, made permanent and indexed for inflation. A large gift can be sheltered by it, but doing so uses up estate tax exclusion that would otherwise be available at your sister’s death.
New York has no separate gift tax, but gifts made within three years of death can be brought back into the estate for New York estate tax purposes. Filing the gift tax return even when no tax is due is worth doing for its own sake: it creates a contemporaneous record that the transfer was a gift, starts limitations periods running, and makes a later argument that the transfer was something else much harder to mount.
Anyone challenging the transfer faces a statute of limitations, and the period depends on the theory of the claim.
| Claim | Limitations period |
|---|---|
| Undue influence | Generally six years from the transfer, though discovery rules may extend the period in some circumstances. |
| Lack of capacity | Generally six years from the transfer. |
| Fraud | Six years from the fraud, or two years from discovery of the fraud, whichever is later. |
| Constructive trust | Six years from the events giving rise to the constructive trust. |
| Claims by your sister’s estate after her death | Triggered by the appointment of an executor or administrator, with the limitations on the underlying claims continuing to apply. |
Time generally favors the person defending a transfer. As memories fade and documents go missing, proving that a transfer was invalid becomes harder, which is one more reason to build the record at the outset rather than reconstruct it later.
Even a well-documented transfer is sometimes contested. If a challenge is filed, engage counsel at once; early intervention is far more effective than reacting after the case has gathered momentum. Preserve every document connected to the transfer, and identify and contact the potential witnesses: the notary, the attorneys, the doctors, and the family members who saw the transaction. Do not discuss the dispute outside structured legal proceedings, where a casual remark can be turned against you, and do not sell, spend or dispose of the property you received while the dispute is pending. Then weigh, with your lawyer, whether a settlement makes sense given the strength of your documentation and the cost of litigation.
A simple transfer from your sister to you can raise more issues than either of you expected. If you would like help structuring the transfer so it holds up, or you are already facing a challenge to it, call the Law Offices of Albert Goodwin at 212-233-1233 or email [email protected].