No. The archaeologists at the AHC also work for the State Historic Preservation Officer (SHPO) and review the reports from surveys and excavations generated by section 106 in the National Historic Preservation Act of 1966 (as amended). It would be a conflict of interest if we both did section 106 archaeology and reviewed 106 reports for quality.
We do not do evaluations of artifacts for sale in the antiquities trade. Professional ethics do not allow archaeologists to buy and sell artifacts. We can, however, make a non-monetary estimate of the scientific value of a collection.
This is a rare event. The AHC archaeologists will try to investigate and record endangered sites, but the AHC rarely purchases sites or funds full excavations. Other organizations such as the Archaeological Conservancy can sometimes purchase a site. Archaeology almost never halts a project, particularly if it is on private land.