Staff of the District Attorney's Office:

LORI PETTIT RIEMAN, District Attorney
lprieman@cattco.org

JESSICA UNGARO, Assistant District Attorney
jaungaro@cattco.org, Voice: (716) 254-0435

BETTY L. WILLIAMS, Secretary to District Attorney
blwilliams@cattco.org, Voice: (716) 938-2220

MARCY L. ZALEWSKI, Confidential Law Secretary
MLZalewski@cattco.org, Voice: (716) 938-2221

DANIEL E. WAASDORP, Criminal Investigator
dewaasdorp@cattco.org, Voice: (716) 938-2364

CLARK O. PARRY, Criminal Investigator
COParry@cattco.org, Voice: (716) 938-2223

Assistant District Attorneys

KELLY BALCOM, Assistant District Attorney
KMBalcom@cattco.org, Voice: (716) 982-2649
Serves: Allegany (Town), Carrollton, Hinsdale, Machias, Olean (Town), Randolph, Dayton (Town), South Dayton

JOSH FRANK, Assistant District Attorney
JTFrank@cattco.org, Voice: (716) 431-2199
Serves: Salamanca (City),  Allegany (Village), Freedom, Farmersville, Lyndon

JIA-CHIR CHIU (BECKY), Assistant District Attorney

bjchiu@cattco.org, Voice: (716) 498-0876

Serves: Ashford, Mansfield, South Valley, Salamanca (Town), East Otto, Persia, Coldspring, Otto, Portville (Town), Portville (Village), Redhouse

DEREK HAFNER, Assistant District Attorney

dddhafner@cattco.org, Voice: (716) 512-1820

Serves: Franklinville, New Albion, Humphrey, Perrysburg, Conewango, Olean (City)- Tuesdays, Leon, Napoli

MARSHALL T. HALL, Assistant District Attorney

mthall@cattco.org, Voice: (716) 512-0737

Serves: Olean (City)- Wednesdays, Yorkshire, Great Valley, Little Valley, Ellicottville (Town), Ellicottville (Village), Ischua

Town & Village Prosecutors (Traffic Infractions)

Allegany Town: Bert Dohl, Esq. (716) 945-3060

Allegany Village: Mike Burke, Esq. (716) 375-5130

Ashford: Bridget Marshall, Esq.

Carrollton: Kelly Balcom, Esq. (716) 982-2649

Coldspring: Bridget Marshall, Esq.

East Otto: Jim Musacchio, Esq. (716) 532-3351

Ellicottville Town:  

Farmersville:  

Franklinville: Jessica Ungaro, Esq. (716) 254-0435

Freedom: Robert Kutzuba, Esq. (585) 492-1460

Great Valley: Bridget Marshall, Esq.

Hinsdale: Mike Burke, Esq. (716) 375-5130

Ischua: Kelly Balcom, Esq. (716) 982-2649

Little Valley: Bridget Marshall, Esq.

Lyndon: Jessica Ungaro, Esq. (716) 254-0435

Machias: Kelly Balcom, Esq. (716) 982-2649

Mansfield: 

Olean Town: Kelly Balcom, Esq. (716) 982-2649

Perrysburg: Rachel Mitchell, Esq. (716) 532-2465

Persia: Jim Musacchio, Esq. (716) 532-3351

Portville Town:  

Portville Village: Kelly Balcom, Esq. (716) 982-2649

Randolph: Bridget Marshall, Esq.

Salamanca Town: 

South Dayton Town: John Grennel, Esq.

South Dayton Village: John Grennel,Esq.

Yorkshire: Jessica Ungaro, Esq. (716) 254-0435

Napoli Town: Tom Rickert, Esq.(716) 945- 3060