Reply To: Adjust permissions/Role

@bigbensnake
This may be what you need..
wp-content/plugins/wc-vendors-pro/public/class-wcvendors-pro-dashboard.php
lines 463-496:

/**
	 * Can the current user view the dashboard ? 
	 *
	 * @since    1.0.0
	 */
	public function can_view_dashboard() { 

		if ( !is_user_logged_in() ) {
			return false;
		} else if ( !WCV_Vendors::is_vendor( get_current_user_id() ) ) {
			// Include the dashboard wrapper 
			include_once( apply_filters( 'wcvendors_pro_dashboard_open_path', 'partials/wcvendors-pro-dashboard-open.php' ) ); 

			if ( WCVendors_Pro_Vendor_Controller::is_pending_vendor( get_current_user_id() ) ) { 
				$vendor_pending_notice = WCVendors_Pro::get_option( 'vendor_pending_notice' );
				wc_get_template( 'vendor-pending-notice.php', array( 'vendor_pending_notice' => $vendor_pending_notice ), 'wc-vendors/front/', $this->base_dir . '/templates/front/' );
				return false; 
			} elseif ( !current_user_can('administrator') ) { 
				$vendor_signup_notice = WCVendors_Pro::get_option( 'vendor_signup_notice' );
				// Load the new sign up form template 
				wc_get_template( 'vendor-signup-form.php', array( 'vendor_signup_notice' => $vendor_signup_notice ), 'wc-vendors/front/', $this->base_dir . '/templates/front/' );
				return false; 
			} else { 
				echo __( 'Admins cannot apply to be vendors. ', 'wcvendors-pro' ); 
				return false;  
			}

			// Close the dashboard wrapper
			include_once( apply_filters( 'wcvendors_pro_dashboard_close_path', 'partials/wcvendors-pro-dashboard-close.php' ) ); 
		}

		return true;

	} // can_view_dashboard()