The federal government regulates appraisers indirectly because if the Appraisal Subcommittee (ASC) of the Federal Financial Institutions Examination Council (FFIEC) finds that a particular state's appraiser regulation and certification program is inadequate, then under federal regulations all appraisers in that state would no longer be eligible to conduct appraisals for federally chartered banks.[25] The ASC oversees the TAF. Banks make widespread use of mortgage loans and mortgage-backed securities, and would be unable to do so without appraisals.
Comment: I am a Real Estate Investor, and I have a property under contract in Gulfport. The house is a fixer upper that needs a lot of work. My intention is to completely remodel this house and resell it. I am looking for a Real Estate Appraiser who can get me an appraisal subject to repairs to confirm the after repair value of the property. I can provide you with my preliminary budget, scope of work and pictures of finished product.

Data is collected on recent sales of properties similar to the subject being valued, called "comparables". Only SOLD properties may be used in an appraisal and determination of a property's value, as they represent amounts actually paid or agreed upon for properties. Sources of comparable data include real estate publications, public records, buyers, sellers, real estate brokers and/or agents, appraisers, and so on. Important details of each comparable sale are described in the appraisal report. Since comparable sales are not identical to the subject property, adjustments may be made for date of sale, location, style, amenities, square footage, site size, etc. The main idea is to simulate the price that would have been paid if each comparable sale were identical to the subject property. If the comparable is superior to the subject in a factor or aspect, then a downward adjustment is needed for that factor.[clarification needed] Likewise, if the comparable is inferior to the subject in an aspect, then an upward adjustment for that aspect is needed.[clarification needed] The adjustment is somewhat subjective and relies on the appraiser's training and experience. From the analysis of the group of adjusted sales prices of the comparable sales, the appraiser selects an indicator of value that is representative of the subject property. It is possible for various appraisers to choose a different indicator of value which ultimately will provide different property value.
Federal law requires appraisers to have a state license or certification when working on federally related transactions, such as appraisals for loans made by federally insured banks and financial institutions. The Appraisal Foundation (TAF) offers information on appraisal licensing. There is no such federal requirement for assessors, although some states require certification. For state-specific requirements, applicants should contact their state board.
These appraisers also perform valuations on commercial property ranging from single to multiple tenant office buildings, shopping centers, retail, industrial, malls, hospitals, health care facilities, warehouses, and hotels to multi-family apartment buildings, co-ops, senior housing, condominium developments, and even vacant land, agricultural, and golf courses.  Regardless of the property type or local zoning, they'll determine the highest and best use of the project and assess the value using the actual or projected cash flow from the property's rent roll and financial statements, using both cap rates for capitalizing year one net operating income (NOI) and discounted cash flow (DCF) of multiple future income streams.  If you're a commercial lender, investor, builder, contractor, architect, or agent, you'll want to use these appraisers to conduct a feasibility analysis of any income producing real estate project you may be considering.  They can also help consult on construction costs and projected absorption rates.  They generally produce a commercial narrative appraisal when engaged for any commercial assignment.