Trusted Arizona Residential Appraisal Services
Professional, defensible residential valuation for estate attorneys, probate matters, divorce attorneys, litigation support, lenders, homeowners, and complex Arizona properties.
Who We Serve
Who We Serve
Professional appraisal services for homeowners and professionals who need credible, independent residential valuation.
Trustees
Professionals
Financial Professionals
Serving attorneys, estate and probate professionals, fiduciaries, lenders, real estate professionals, and homeowners throughout our Central Arizona service area.
Services
Residential appraisal services for legal, lending, and private-client needs.
Select a service below to learn more. Each assignment is developed with local market knowledge, clear reporting, and professional independence.
Estate Planning / Tax Valuations
Estate planning, trusts, date-of-death and retrospective valuations, inheritance, probate, and tax-related residential valuation needs.
Visit Estate Appraisal Page →Divorce Appraisals
Clear, independent residential valuation for equitable distribution, mediation, settlement, or court-related matters.
Visit Divorce Appraisal Page →Litigation Support
Professional appraisal analysis and support for disputes requiring credible, well-supported residential valuation.
Learn More →Complex Properties
Appraisal services for custom, rural, luxury, green, acreage, or unique homes with limited comparable sales.
Learn More →Mortgage Lending
Residential appraisal services for purchase, refinance, HELOC, portfolio lending, and private lending needs.
Learn More →PMI Removal
Current market value appraisals that may help homeowners request removal of private mortgage insurance.
Visit PMI Removal Page →Cash Purchases
Independent market-value analysis for buyers making a substantial purchase without a lender-required appraisal.
Learn More →Employee Relocation
Professional residential valuation for relocation decisions, employers, relocation professionals, and homeowners.
Learn More →Tax Appeal Appraisals
Market-supported valuation analysis for homeowners evaluating property tax appeal or assessment concerns.
Learn More →Green & Energy-Efficient Home Appraisals
Earth Advantage green accredited appraisal competency for energy-efficient and sustainable home features.
Learn More →Pre-Listing Appraisals
Independent pricing insight before listing, selling, buying out an owner, or making a major real estate decision.
Learn More →Why Choose Cornerstone
Arizona experience, professional judgment, and local market knowledge.
Eric Ranta is an Arizona Certified Residential Appraiser with 28 years of appraisal experience in Arizona, FHA-approved competency, and Earth Advantage green accreditation.
Service Area
Proudly serving Central Arizona.
Cornerstone Appraisal services all of Maricopa County, all of Pinal County, and Globe–Miami and surrounding communities in Gila County.
Serving all of Maricopa County
Serving all of Pinal County
Serving Globe–Miami and surrounding communities
Resource Center
Helpful appraisal resources for attorneys and property owners.
Preparing for an Appraisal
A practical guide to preparing your property, documents, improvements, and energy-efficiency information for an appraisal.
Read the Guide →Arizona Guide to Date-of-Death Appraisals
A practical overview for estate attorneys, executors, trustees, and families handling retrospective estate valuation needs.
Read the Guide →Divorce Appraisal Process in Arizona
What attorneys and clients should know about independent residential valuation during divorce proceedings.
Read the Guide →FAQ'sAboutAppraisals
Straightforward answers to common questions from homeowners, attorneys, fiduciaries, lenders, and other professionals.
What are the benefits of a professional appraisal?
Good real estate decisions start with reliable information. A professional appraisal gives you an independent, property-specific opinion of value supported by market data rather than a generic estimate.
Although mortgage lending is a common reason for an appraisal, an independent valuation can also be useful when you need to:
- Set a reasonable asking price before selling a home.
- Evaluate whether a purchase price is supported by the market.
- Document value for insurance or financial planning purposes.
- Resolve property disputes, partitions, divorce matters, or other litigation.
- Analyze a property before a major investment or renovation decision.
- Support relocation, estate settlement, or division of assets.
- Evaluate a property tax assessment or other financial review.
- Document sufficient equity for possible private mortgage insurance (PMI) removal.
- Establish a well-supported property value for tax, estate, trust, or governmental reporting needs.
What should I ask before hiring an appraiser?
Before engaging an appraiser, make sure the person has the credentials, local knowledge, and assignment-specific experience needed for your property. Useful questions include:
- Are you licensed or certified in Arizona?
- What professional education, accreditations, or specialty training do you have?
- How long have you been appraising residential real estate?
- How familiar are you with this market area and this type of property?
- Do you regularly handle assignments like estates, divorce, litigation, green homes, lending, or complex properties?
- Are you familiar with the neighborhood and the competitive market?
- What information will you need from me to complete the assignment efficiently?
For unusual or high-stakes assignments, competency in the specific property type and intended use can be every bit as important as general appraisal experience.
Why can't I just use an online real estate valuation site?
Automated valuation websites can be useful as a quick reference, but they are estimates produced by computer models. They generally cannot inspect the property or fully account for the details that often influence value: remodeling quality, condition, view, lot utility, functional design, landscaping, accessory improvements, energy-efficient features, or a rapidly changing neighborhood market.
A certified appraiser analyzes the specific property, researches relevant comparable sales, considers market reaction to important features, and explains the reasoning behind the value conclusion. For decisions involving estates, divorce, litigation, lending, taxes, or substantial financial consequences, that property-specific analysis matters.
How can I tell whether an appraisal report is credible and valid?
Start by confirming that the appraiser holds the appropriate Arizona license or certification for the assignment. A professional appraiser is also expected to comply with applicable appraisal standards and ethical requirements, including the Uniform Standards of Professional Appraisal Practice (USPAP).
A credible report should identify the property and intended use, describe the scope of work, analyze relevant market data, explain important adjustments or valuation judgments, and provide enough support for the reader to understand how the value conclusion was developed.
Arizona licensing information can be verified through the state's official appraiser licensing resources. USPAP is developed by The Appraisal Foundation.
Do you work with attorneys, estates, and other professional clients?
Yes. Cornerstone Appraisal regularly provides residential valuation services for estate and probate matters, date-of-death valuations, divorce and property division, litigation support, tax matters, complex properties, and other assignments where an independent and well-documented value opinion is important.
For legal and fiduciary work, I focus on clear communication, appropriate effective dates, defensible market support, and a report that can be understood by attorneys, clients, accountants, trustees, and other intended users.
What areas does Cornerstone Appraisal serve?
I provide residential appraisal services throughout all of Maricopa County and all of Pinal County, plus the Globe–Miami area and surrounding communities in Gila County.
Local market knowledge is especially important when neighborhood boundaries, property types, land influences, or buyer preferences vary significantly from one area to another.
How are green and energy-efficient homes appraised?
A high-performance home deserves an appraiser who understands what makes it different.
Green and energy-efficient homes often include features that go well beyond those found in conventional construction. Properly identifying, documenting, and analyzing these features requires an appraiser with specialized education and an understanding of how energy efficiency and sustainable construction may influence buyer behavior and market value.
As an Earth Advantage–accredited green appraiser, I have specialized training in the valuation of high-performance and energy-efficient residential properties, including homes with RESNET HERS® ratings, LEED® certification, Pearl Certification, solar photovoltaic systems, high-efficiency HVAC equipment, enhanced insulation and building envelopes, energy-efficient windows, water-conservation features, and other sustainable improvements.
A RESNET HERS Score provides a standardized measurement of a home's energy performance, while LEED-certified and Pearl-certified homes provide documented evidence of high-performance features and construction practices. These ratings and certifications can provide valuable information that should be considered as part of a well-supported appraisal rather than treated simply as upgrades on a property checklist.
Just as importantly, a green-certified appraiser understands that the cost of an energy-efficient improvement does not automatically equal its market value. The appraiser must analyze the local market to determine whether buyers recognize and pay a premium for these features and, when possible, support that conclusion with relevant market data.
Whether your property is a newly constructed high-performance home, a certified green residence, or an existing home that has undergone substantial energy-efficiency improvements, choosing an appraiser with specialized green-building knowledge helps ensure that these features are properly identified, documented, analyzed, and communicated in the appraisal report.
Your home may perform differently. It should be appraised by someone who understands why.
What information should I send when requesting an appraisal?
For the fastest response, email the property address, the reason for the appraisal, the effective date you need, any relevant deadline, and a short description of the property or circumstances. For retrospective assignments such as a date-of-death appraisal, include the historical valuation date. If the property has unusual features, recent renovations, solar or green certifications, acreage, a guest house, or other non-typical improvements, mention those as well.
The contact form below is designed to collect this information so I can review the assignment before responding.
Testimonials
Professional, clear, and reliable.
What clients and real estate professionals say about working with Cornerstone Appraisal.
“I had the pleasure of working with Eric Ranta of Cornerstone Appraisal Group on one of my recent listings, and I was very impressed. His communication was thorough and professional from start to finish. What really stood out was that Eric followed up with me to let me know when he had submitted his report to the lender. Appraisers don't often keep the listing agent informed like that, and it made a real difference in keeping everyone on the same page and the deal moving forward. I'd highly recommend Eric and Cornerstone Appraisal Group to any agent, buyer or seller.”
Shane P., Realtor®“Eric has done work for the AMC that I manage for many years. He is great with communication, and his work is of high quality. Eric is always timely and thorough with his work. Eric is an asset to our appraisal management company, and I would highly recommend him to anyone (lender or private work).”
Melissa H.“I had to find an appraisal for my properties in Pinal County and Eric was the most prompt/cost efficient of the rest that I called. He did everything when he said he would and communicated during the process. Would recommend for anyone else needing an appraisal.”
SG“Five Stars”
Nina R.“I needed an appraisal to help set the price for my unique home and Eric was up to the task! He was prompt, communicative, and thorough. I couldn't be happier with his appraisal and the service he provided.”
Stephen S.“Having an Accredited Green Appraiser help me set prices and identify energy-efficient items on energy-efficient certified homes has been a game changer for me and my office. I never hesitate to recommend Eric.”
Amanda S., Realtor“I needed an appraisal for the IRS when my wife died and a friend recommended Eric at Cornerstone Appraisal. Eric was responsive and helped walk me through the appraisal process. I would definitely recommend him to someone in a similar circumstance.”
Joe C.“We had a great experience with Cornerstone Appraisal Services. They were quick and professional, and Eric stayed an additional 15 minutes at the end of the inspection answering our questions. We highly recommend him to anyone needing an appraisal.”
John H.“Eric and his assistant were consummate professionals. I enjoyed working with them and would recommend him for any appraisal needs. They worked well with the current owners, which I was worried about TBH, and then they decided to hire them as well to appraise a cabin up North.”
Brett G.“Courteous and highly professional. Great to work with. 5 Star service provided.”
Blake S.“Eric is wonderful! He answered all my questions and made me feel very comfortable with the appraisal process. Very professional and an excellent choice for any appraisal services you may need.”
Sarah L.Contact Cornerstone Appraisal
Questions or appraisal needs? I’m here to help.
Use the quick-question form for general information, or the appraisal request form when you’re ready to discuss a specific assignment.
Not Ready to Order, but Have a Question?
Not sure what type of appraisal you need, whether an appraisal is appropriate, or whether I cover your situation? Send me a quick question.
Request an Appraisal
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Earth Advantage Green Accredited
Additional appraisal competency for energy-efficient, sustainable, and green home features.
Also FHA Approved