
A home appraisal is only as useful as the research and judgment behind it. In Philadelphia, a few blocks can separate properties with different housing styles, buyer demand, parking options and sale patterns. That makes local market knowledge more than a convenient credential: it is central to selecting meaningful comparable sales and explaining a supported value opinion.
Whether you need an appraisal for an estate, divorce, tax appeal, sale, refinance or another purpose, these seven questions can help you assess an appraiser’s qualifications and approach. If the assignment is for a mortgage, first ask your lender about its process: the lender or its authorized agent generally selects the appraiser.
1. “Do you have the right credentials and experience for this assignment?”
Start by describing what the appraisal is for. A report prepared for a private planning decision may not meet the requirements of a lender, court or taxing authority. Ask whether the appraiser has completed assignments for the same purpose and property type, and confirm who may rely on the report.
Then verify the appraiser’s Pennsylvania credential through the state’s PALS license search. Check that the status is active and review any available disciplinary information. The Pennsylvania Department of State explains how to check a professional license.
Ask how the appraiser’s experience fits your property. A typical single-family home, condominium, historic property, multi-unit residence and mixed-use building can call for different expertise. Pennsylvania rules require appraisers to follow applicable standards, including USPAP.
2. “How recently have you appraised homes in this specific neighborhood?”
“Philadelphia experience” is a useful starting point, but it does not tell you whether someone understands the immediate market around your property. Ask how often the appraiser has worked in the neighborhood and with similar homes in the past year or two.
Follow up with questions such as:
- Which nearby areas compete for the same buyers?
- How do you determine whether a sale across a neighborhood boundary is comparable?
- Have you appraised this style of home locally, such as a rowhouse, twin, detached home or condominium?
Look for a clear explanation rather than a list of neighborhood names. A professional should be able to describe the market area relevant to the assignment and explain why it fits the property.

3. “How will you identify the right comparable sales?”
Comparable sales, often called “comps,” are recent sales used to help analyze the subject property’s market value. A useful comp is not simply the closest home or the one with the most appealing price. It should compete for a similar buyer and be sufficiently similar in relevant characteristics.
Ask how the appraiser plans to evaluate:
- Property type, size, layout and lot
- Condition and quality of renovations
- Parking, outdoor space and other features
- Sale date, transaction terms and sale verification
- Differences in location and buyer appeal
The Fannie Mae Selling Guide discusses comparable sales for mortgage appraisals, including the importance of selecting appropriate sales and explaining the analysis. If the appraiser uses sales from outside the immediate area, ask what makes those locations competitive and how differences will be addressed.
Philadelphia’s Office of Property Assessment recognizes more than 600 residential Geographic Market Areas for its citywide mass-appraisal work. That assessment system is not the same as an individual appraisal, but it illustrates why a broad citywide label may miss meaningful local differences. See the OPA valuation methodology overview.
4. “How do you account for features that matter in this part of Philadelphia?”
Local experience should show up in the appraiser’s questions about the property, not just in familiarity with the street name. Ask how the analysis will account for the features buyers in the relevant market may consider.
Depending on the property, these could include a renovated kitchen or bath, finished basement, legal living area, off-street parking, outdoor space, condition of major systems, historic character, transit access or nearby commercial activity. Ask how the appraiser distinguishes a documented improvement from an owner’s estimate of its value.
Share factual information that may help: permits, renovation dates, floor plans, receipts, known defects and details about rooms or spaces that may not be obvious during a visit. The appraiser must analyze the evidence independently; providing information is different from directing a value conclusion.
5. “What data sources do you use, and how do you verify sales?”
Ask which local data sources the appraiser relies on, including multiple listing service data, public records and other sources appropriate to the assignment. Also ask how sales are checked for accuracy and whether unusual transaction terms might affect how a sale should be considered.
The answer should make clear that a sale price is evidence, not automatically a reliable measure of market value. A transaction may involve circumstances that make it less comparable to an ordinary, arm’s-length sale. The appraiser should be prepared to explain how sales were selected, verified and analyzed.
For a quick view of the process, ask: “What would you do if the closest sale differed substantially in condition or property type?” A thoughtful answer will describe the trade-offs and explain how the appraiser would support the analysis rather than relying on distance alone.

6. “How do you protect your independence?”
An appraisal is an independent opinion, not a promise to support a proposed sale price, loan amount or tax position. Ask whether the appraiser has any financial interest in the property or transaction, and how they handle pressure to reach a requested value.
For lender-related assignments, independence rules limit attempts to influence an appraiser’s judgment. The Consumer Financial Protection Bureau’s valuation-independence rule explains the requirements. Fannie Mae’s guidance also states that, for its mortgage assignments, the lender or authorized agent is responsible for selecting the appraiser and should prioritize quality over fee or turnaround time. See its appraiser-selection criteria.
You may provide relevant property information, but do not ask an appraiser to “hit” a number. A clear commitment to impartial analysis is a positive sign.
7. “What will the report include, and what are the fee and timeline?”
Before engaging an appraiser directly, request the scope and terms in writing. Confirm:
- The assignment’s intended use and intended users
- The inspection or research scope
- The effective date of the value opinion
- The report format and delivery estimate
- The fee and any additional charges
- Whether the report is intended to meet the requirements of the party receiving it
A professional should be able to explain the process without guaranteeing a value. Be cautious of anyone who promises a specific conclusion, cannot explain their local comparable-sales approach, or gives little attention to the property’s condition and relevant features.

A practical note for Greater Philadelphia assignments
Philadelphia neighborhoods are not interchangeable, and neither are the counties and municipalities surrounding the city. If your home is outside Philadelphia (for example, in Springfield Township, Montgomery County) ask about experience in that municipality and the market competing with your property. The relevant sales and local conditions may differ from those in Philadelphia proper.
For more information about valuation services, visit Higgins & Welch Appraisals. Higgins & Welch Real Estate, Inc. serves the Greater Philadelphia region with appraisal and other real estate services. Selecting an appraiser with appropriate credentials, relevant local experience and a clear, independent process can help you move forward with confidence.