The top-ranked commercial appraisers serving Oak Lawn, IL are James O'Leary, John Konrath and Peter Poulos. We list 847 commercial appraisers serving Oak Lawn, IL. 30 of the providers shown match an active record from FL appraiser board via ASC National Registry and IL appraiser board via ASC National Registry, checked on the date shown. Rankings follow our published methodology; sponsored placements never change rank.
Commercial Real Estate Appraisers serving Oak Lawn, IL (Cook County). 847 providers, 10 of the top 10 verified against federal or state records. Registry records checked on 2026-11-04.
Frequently asked questions
How many commercial appraisers serve Oak Lawn?
We list 847 commercial appraisers serving Oak Lawn, IL: 0 based there and 847 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.
Which commercial appraisers serve Oak Lawn?
The top-ranked commercial appraisers serving Oak Lawn, IL are James O'Leary, John Konrath, Peter Poulos, David Gulley and michael gathman. The full ranked list, with the official records each provider matched, is on this page.
Which commercial appraisers serving Oak Lawn are verified against official records?
10 of the top 10 match an active official record: James O'Leary (FL appraiser board via ASC National Registry; IL appraiser board via ASC National Registry; IN appraiser board via ASC National Registry; MD appraiser board via ASC National Registry; MI appraiser board via ASC National Registry; NC appraiser board via ASC National Registry; NV appraiser board via ASC National Registry; UT appraiser board via ASC National Registry; VA appraiser board via ASC National Registry; WI appraiser board via ASC National Registry), John Konrath (IL appraiser board via ASC National Registry; IN appraiser board via ASC National Registry; KS appraiser board via ASC National Registry; MI appraiser board via ASC National Registry; MN appraiser board via ASC National Registry; MO appraiser board via ASC National Registry; WI appraiser board via ASC National Registry), Peter Poulos (CO appraiser board via ASC National Registry; FL appraiser board via ASC National Registry; IL appraiser board via ASC National Registry; MD appraiser board via ASC National Registry; NC appraiser board via ASC National Registry; OH appraiser board via ASC National Registry), David Gulley (IL appraiser board via ASC National Registry; IN appraiser board via ASC National Registry; MI appraiser board via ASC National Registry; OH appraiser board via ASC National Registry) and michael gathman (CO appraiser board via ASC National Registry; IA appraiser board via ASC National Registry; IL appraiser board via ASC National Registry; IN appraiser board via ASC National Registry; MI appraiser board via ASC National Registry; MN appraiser board via ASC National Registry; MO appraiser board via ASC National Registry; WI appraiser board via ASC National Registry), and 5 more on this page. Each badge links to the official record it matched.
How are these companies ranked?
By our published methodology: verified registrations, documented capabilities, years registered and responsiveness. Sponsored placements are shown separately and never affect rank.
What does "Verified" mean on this page?
"Verified" means we matched the provider to an active official record on the date shown; each badge links to that record. The absence of a badge only means we have not verified that item.
Who can appraise commercial property?
Federally related commercial appraisals generally require a State Certified General appraiser. Every appraiser listed here holds an active Certified General credential in the ASC National Registry.