diff --git a/tests/TestHarness/Cluster.py b/tests/TestHarness/Cluster.py
index 792ee02430..42ddcbfee2 100644
--- a/tests/TestHarness/Cluster.py
+++ b/tests/TestHarness/Cluster.py
@@ -481,6 +481,7 @@ def connectGroup(group, producerNodes, bridgeNodes) :
             node = Node(self.host, self.port + nodeNum, nodeNum, Path(instance.data_dir_name),
                         Path(instance.config_dir_name), eosdcmd, unstarted=instance.dont_start,
                         launch_time=launcher.launch_time, walletMgr=self.walletMgr, nodeosVers=self.nodeosVers)
+            node.keys = instance.keys
             if nodeNum == Node.biosNodeId:
                 self.biosNode = node
             else:
@@ -993,15 +994,13 @@ def parseClusterKeys(totalNodes):
         Utils.Print(f'Found {len(producerKeys)} producer keys')
         return producerKeys
 
-    def activateInstantFinality(self, launcher, biosFinalizer, pnodes):
+    def activateInstantFinality(self, biosFinalizer=True):
         # call setfinalizer
         numFins = 0
-        for n in launcher.network.nodes.values():
-            if not n.keys or not n.keys[0].blspubkey:
+        for n in (self.nodes + [self.biosNode]):
+            if not n or not n.keys or not n.keys[0].blspubkey:
                 continue
-            if not n.producers:
-                continue
-            if n.index == Node.biosNodeId and not biosFinalizer:
+            if n.nodeId == Node.biosNodeId and not biosFinalizer:
                 continue
             numFins = numFins + 1
 
@@ -1009,18 +1008,15 @@ def activateInstantFinality(self, launcher, biosFinalizer, pnodes):
         if threshold > 2 and threshold == numFins:
             # nodes are often stopped, so do not require all node votes
             threshold = threshold - 1
-        # pnodes does not include biosNode
-        if Utils.Debug: Utils.Print(f"threshold: {threshold}, numFins: {numFins}, pnodes: {pnodes}")
+        if Utils.Debug: Utils.Print(f"threshold: {threshold}, numFins: {numFins}")
         setFinStr =  f'{{"finalizer_policy": {{'
         setFinStr += f'  "threshold": {threshold}, '
         setFinStr += f'  "finalizers": ['
         finNum = 1
-        for n in launcher.network.nodes.values():
-            if n.index == Node.biosNodeId and not biosFinalizer:
-                continue
-            if not n.keys or not n.keys[0].blspubkey:
+        for n in (self.nodes + [self.biosNode]):
+            if not n or not n.keys or not n.keys[0].blspubkey:
                 continue
-            if not n.producers:
+            if n.nodeId == Node.biosNodeId and not biosFinalizer:
                 continue
             setFinStr += f'    {{"description": "finalizer #{finNum}", '
             setFinStr += f'     "weight":1, '
@@ -1109,7 +1105,7 @@ def bootstrap(self, launcher,  biosNode, totalNodes, prodCount, totalProducers,
             return None
 
         if activateIF:
-            self.activateInstantFinality(launcher, biosFinalizer, self.productionNodesCount)
+            self.activateInstantFinality(biosFinalizer)
 
         Utils.Print("Creating accounts: %s " % ", ".join(producerKeys.keys()))
         producerKeys.pop(eosioName)
diff --git a/tests/TestHarness/Node.py b/tests/TestHarness/Node.py
index ddd2584038..d23f42d2f9 100644
--- a/tests/TestHarness/Node.py
+++ b/tests/TestHarness/Node.py
@@ -10,6 +10,7 @@
 import sys
 from pathlib import Path
 from typing import List
+from dataclasses import InitVar, dataclass, field, is_dataclass, asdict
 
 from datetime import datetime
 from datetime import timedelta
@@ -21,6 +22,14 @@
 from .testUtils import unhandledEnumType
 from .testUtils import ReturnType
 
+@dataclass
+class KeyStrings(object):
+    pubkey: str
+    privkey: str
+    blspubkey: str = None
+    blsprivkey: str = None
+    blspop: str = None
+
 # pylint: disable=too-many-public-methods
 class Node(Transactions):
     # Node number is used as an addend to determine the node listen ports.
@@ -66,6 +75,7 @@ def __init__(self, host, port, nodeId: int, data_dir: Path, config_dir: Path, cm
         self.config_dir=config_dir
         self.launch_time=launch_time
         self.isProducer=False
+        self.keys: List[KeyStrings] = field(default_factory=list)
         self.configureVersion()
 
     def configureVersion(self):