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| Stunz, Fonda, Kiyuna & Horton, LLP | 
| Address: 40 S. Oregon St., Ontario, OR 97914-2806 | 
| Practice:Water Law, Municipal Bonds, Estate Planning, Probate, Litigation, Agricultural Law, Labor Relations, Bankruptcy, Taxation, Real Property, Criminal Law, Personal Injury, Workers Compensation | 
| Establish Year:1947 | 
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| S Peterson Law, LLC | 
| Address: 44 S. Oregon St., Ontario, OR 97914 | 
| Practice: | 
| Establish Year:   | 
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| Rader, Stoddard & Perez, PC | 
| Address: 381 W. Idaho Ave., Ontario, OR 97914 | 
| Practice: | 
| Establish Year: | 
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| Douglas J. Rock, P.C. | 
| Address: , Ontario, OR 97914 | 
| Practice: | 
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| Coughlin, Leuenberger & Moon, P.C. | 
| Address: 153 S.W. First Street, Ontario, OR 97914 | 
| Practice:General Practice, Personal Injury, Business Law, Real Estate, Domestic Relations, Criminal Law, Probate, Corporate Law, Mining Law, Estate Planning, Banking Law, Litigation, Workers Compensation | 
| Establish Year:1982 | 
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| Charles S.Oakes | 
| Address: 1052 S.W. 4th Ave., Ste. 1, Ontario, OR 97914-2100 | 
| Practice: | 
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