Estate planning is part law, part tax strategy, and part family dynamics. But at the center of most estate plans in the New York metro area is real property — and real property requires accurate, defensible valuation.

Whether you're drafting a trust, executing a gifting strategy, or preparing for estate tax filing, the appraisal you rely on determines whether your client's plan succeeds or creates problems down the road. After 20+ years providing appraisals for attorneys across Westchester, Manhattan, and Connecticut, here's why the attorney-appraiser relationship is more critical than most people realize.

When Estate Planning Requires an Appraisal

Most estate planning attorneys know they need an appraiser for date-of-death valuations required by the IRS. But appraisals play a role much earlier in the planning process:

Trust Funding and Irrevocable Trusts

When real property is transferred into an irrevocable trust, an appraisal establishes the transfer value for gift tax reporting purposes. If the property is later sold by the trust or distributed to beneficiaries, that original appraisal becomes part of the permanent record and can affect future basis calculations.

Using a qualified appraiser — one who meets IRS standards under Treasury Regulation 1.170A-17 — is critical. An unqualified appraisal can trigger penalties or force the trustee to commission a second appraisal later.

Annual Gifting Strategies

High-net-worth clients often use fractional gifting of real estate interests to reduce the taxable estate while staying under annual exclusion limits. Each fractional gift requires a valuation — and because minority interests in real property typically warrant a discount, the methodology used by the appraiser has significant tax implications.

An appraiser familiar with fractional interest valuation can properly apply marketability and control discounts, ensuring the gift is valued correctly and defensibly if the IRS later audits.

Qualified Personal Residence Trusts (QPRTs)

A QPRT allows a client to transfer their residence into a trust while retaining the right to live there for a specified term. The gift tax value is based on the property's fair market value minus the retained interest. An accurate appraisal at the time of transfer is essential to properly calculate the taxable gift.

Estate Equalization Among Heirs

When one heir is receiving real property and others are receiving cash or securities, appraisals ensure the distribution is equitable. An outdated or inaccurate valuation can create family conflict and, in some cases, litigation among beneficiaries who believe the estate was not divided fairly.

Why the Appraiser You Choose Matters

Not all appraisers are created equal — and estate work demands a higher standard than a typical mortgage appraisal. Here's what separates a qualified estate appraiser from the rest:

IRS Qualification Requirements

The IRS requires that appraisers performing estate or gift tax valuations meet specific qualifications under IRC Section 170(f)(11) and Treasury Regulation 1.170A-17. This includes holding a recognized designation (such as SRA or MAI), having verifiable education and experience, and being subject to disciplinary action by a professional appraisal organization.

Many residential appraisers are not IRS-qualified. Using one anyway can result in penalties, rejected appraisals, or the need to re-do the work later — often when the appraiser is no longer available or when market conditions have changed.

Retrospective Valuation Experience

Estate appraisals are almost always retrospective — the appraiser is valuing the property as of a past date, often months or even years earlier. This requires a different skillset than a standard "as of today" appraisal.

A good estate appraiser knows how to research historical comparable sales, adjust for market conditions between the valuation date and the research date, and document the time-adjustment methodology in a way that satisfies IRS scrutiny.

Audit Defense and Expert Testimony

If the IRS challenges an estate tax return, the appraiser who performed the original valuation may be called to defend their work. An experienced appraiser with a track record of defensible methodology — and the willingness to provide expert testimony if needed — is an asset. An appraiser who cuts corners or disappears when questions arise is a liability.

The best time to think about audit risk is before the appraisal is ordered — not after the IRS notice arrives. Choose an appraiser who builds defensibility into every report from the start.

Common Estate Appraisal Challenges (And How to Avoid Them)

Appraisal Ordered Too Late

One of the most common problems we see is the appraisal being ordered months or even years after the valuation date. By that time, market conditions may have shifted significantly, comparable sales are harder to find, and the appraiser is working with incomplete or outdated data.

Best practice: Order the appraisal as soon as the date-of-death value is needed for estate administration. Even if the estate tax return isn't due for months, getting the appraisal done early ensures better data quality and reduces stress later.

Incomplete or Inaccurate Property Information

Estate appraisals often involve properties the executor or attorney has never personally visited. If the appraiser is given incorrect information — wrong square footage, outdated condition assessment, or missing improvements — the entire valuation can be off.

Best practice: Provide the appraiser with as much documentation as possible: prior appraisals, tax records, photos if the property is occupied or inaccessible, and any known defects or deferred maintenance.

Using a "Desktop" or "Broker Price Opinion" Instead of a Full Appraisal

Some executors or attorneys, hoping to save money, request a desktop appraisal or broker price opinion (BPO) for estate tax purposes. The IRS does not accept these for estate tax filings — only a full appraisal from a qualified appraiser meets the standard.

Trying to use a shortcut appraisal can result in the entire estate tax filing being delayed or rejected, costing far more in the long run than a proper appraisal would have cost upfront.

Building a Long-Term Appraiser Relationship

Estate planning attorneys who build a relationship with one or two trusted appraisers gain significant advantages:

Benefits of a Trusted Appraiser Partnership

  • Faster turnaround — the appraiser knows your expectations and can prioritize your clients
  • Consistent quality — you know exactly what kind of report you'll receive
  • Better communication — the appraiser understands the legal context and can flag potential issues early
  • Audit support — if an appraisal is challenged, you have an appraiser who will stand behind their work
  • Education for your clients — a good appraiser can help your clients understand why accurate valuation matters

For attorneys handling complex estates or high-net-worth clients, having an appraiser who understands the nuances of fractional interests, conservation easements, or luxury properties is invaluable. This isn't a commodity service — it's a professional partnership.

Questions to Ask When Vetting an Appraiser

If you're building your referral network or bringing on a new appraiser for the first time, here are the questions that matter:

Are you IRS-qualified under Treasury Regulation 1.170A-17?

This is the baseline. If the answer is anything other than "yes," move on. Ask for their designation (SRA, MAI, or equivalent) and verify their credentials.

How many estate appraisals have you completed in the past 12 months?

Experience matters. An appraiser who does one or two estate appraisals a year is not the same as an appraiser who does dozens. You want someone for whom this is routine, not a special project.

What is your turnaround time for a retrospective appraisal?

Estate administration often has tight deadlines. An appraiser who takes 4–6 weeks for a standard estate appraisal may not be able to meet your needs if you have a filing deadline approaching.

Have you ever been called to defend an appraisal in an IRS audit or litigation?

If yes, how did it go? An appraiser with audit defense experience is a significant asset. If they've never had an appraisal challenged, that could mean their work is rock-solid — or it could mean they don't do enough estate work to have been tested yet.

Do you carry errors and omissions insurance?

This should be a given, but it's worth confirming. E&O insurance protects both you and the appraiser if a valuation is later found to have been flawed.

What Attorneys Should Provide to the Appraiser

A good appraisal requires good information. Here's what helps the appraiser deliver the best possible result:

The more context the appraiser has, the better they can tailor the report to meet the specific legal and tax requirements of your engagement.

The Bottom Line

Real estate is often the single largest asset in an estate. Getting the valuation right protects your client from overpaying estate taxes, supports equitable distributions among heirs, and ensures compliance with IRS requirements.

A qualified, experienced appraiser is not just a vendor — they're a critical part of your professional team. Choose wisely, build the relationship, and your clients will benefit for years to come.