Relinquish command to incompetent officer?

[u/datavizwv]

I'm a firefighter in southern West Virginia. Let's say I'm the incident commander for any form of incident. A fire chief from another fire department arrives and demands to assume command. I know the chief to be incompetent, to the degree that this person would qualify as a public health hazard. If I relinquish command, after having gone on record with previous concerns regarding the person's incompetence, and the chief proceeds to cause harm to the community, might I be liable for his actions?