Heather Sibbison

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Heather Sibbison

( Federal,  )

DENTONS US LLP

Clients

1) COWLITZ INDIAN TRIBE

2) GRAND TRAVERSE BAND OF OTTAWA & CHIPPEWA INDIANS

3) LITTLE TRAVERSE BAY BANDS

4) MASHPEE WAMPANOAG TRIBE

5) PRAIRIE ISLAND INDIAN COMMUNITY

6) TOHONO O'ODHAM NATION

Last Updated: July 21, 2026