diff --git a/src/main/java/io/blk/erc20/ContractService.java b/src/main/java/io/blk/erc20/ContractService.java
index 67f2a67..dfc7865 100644
--- a/src/main/java/io/blk/erc20/ContractService.java
+++ b/src/main/java/io/blk/erc20/ContractService.java
@@ -58,7 +58,7 @@ public String deploy(
     }
 
     public String name(String contractAddress) throws Exception {
-        HumanStandardToken humanStandardToken = load(contractAddress);
+        HumanStandardToken humanStandardToken = load(contractAddress,"",false);
         try {
             return humanStandardToken.name().send();
         } catch (InterruptedException | ExecutionException e) {
@@ -67,8 +67,8 @@ public String name(String contractAddress) throws Exception {
     }
 
     public TransactionResponse<ApprovalEventResponse> approve(
-            List<String> privateFor, String contractAddress, String spender, BigInteger value) throws Exception {
-        HumanStandardToken humanStandardToken = load(contractAddress, privateFor);
+            List<String> privateFor, String contractAddress, String spender, BigInteger value, String ownerAddress) throws Exception {
+        HumanStandardToken humanStandardToken = load(contractAddress, privateFor,ownerAddress,true); 
         try {
             TransactionReceipt transactionReceipt = humanStandardToken
                     .approve(spender, value).send();
@@ -79,7 +79,7 @@ public TransactionResponse<ApprovalEventResponse> approve(
     }
 
     public long totalSupply(String contractAddress) throws Exception {
-        HumanStandardToken humanStandardToken = load(contractAddress);
+        HumanStandardToken humanStandardToken = load(contractAddress,"",false);
         try {
             return extractLongValue(humanStandardToken.totalSupply().send());
         } catch (InterruptedException | ExecutionException e) {
@@ -89,7 +89,7 @@ public long totalSupply(String contractAddress) throws Exception {
 
     public TransactionResponse<TransferEventResponse> transferFrom(
             List<String> privateFor, String contractAddress, String from, String to, BigInteger value) throws Exception {
-        HumanStandardToken humanStandardToken = load(contractAddress, privateFor);
+        HumanStandardToken humanStandardToken = load(contractAddress, privateFor,"",false);
         try {
             TransactionReceipt transactionReceipt = humanStandardToken
                     .transferFrom(from, to, value).send();
@@ -100,7 +100,7 @@ public TransactionResponse<TransferEventResponse> transferFrom(
     }
 
     public long decimals(String contractAddress) throws Exception {
-        HumanStandardToken humanStandardToken = load(contractAddress);
+        HumanStandardToken humanStandardToken = load(contractAddress,"",false);
         try {
             return extractLongValue(humanStandardToken.decimals().send());
         } catch (InterruptedException | ExecutionException e) {
@@ -109,7 +109,7 @@ public long decimals(String contractAddress) throws Exception {
     }
 
     public String version(String contractAddress) throws Exception {
-        HumanStandardToken humanStandardToken = load(contractAddress);
+        HumanStandardToken humanStandardToken = load(contractAddress,"",false);
         try {
             return humanStandardToken.version().send();
         } catch (InterruptedException | ExecutionException e) {
@@ -118,7 +118,7 @@ public String version(String contractAddress) throws Exception {
     }
 
     public long balanceOf(String contractAddress, String ownerAddress) throws Exception {
-        HumanStandardToken humanStandardToken = load(contractAddress);
+        HumanStandardToken humanStandardToken = load(contractAddress,"",false);
         try {
             return extractLongValue(humanStandardToken.balanceOf(ownerAddress).send());
         } catch (InterruptedException | ExecutionException e) {
@@ -127,7 +127,7 @@ public long balanceOf(String contractAddress, String ownerAddress) throws Except
     }
 
     public String symbol(String contractAddress) throws Exception {
-        HumanStandardToken humanStandardToken = load(contractAddress);
+        HumanStandardToken humanStandardToken = load(contractAddress,"",false);
         try {
             return humanStandardToken.symbol().send();
         } catch (InterruptedException | ExecutionException e) {
@@ -136,8 +136,8 @@ public String symbol(String contractAddress) throws Exception {
     }
 
     public TransactionResponse<TransferEventResponse> transfer(
-            List<String> privateFor, String contractAddress, String to, BigInteger value) throws Exception {
-        HumanStandardToken humanStandardToken = load(contractAddress, privateFor);
+            List<String> privateFor, String contractAddress, String to, BigInteger value, String fromAddress) throws Exception {
+        HumanStandardToken humanStandardToken = load(contractAddress, privateFor,fromAddress,true);
         try {
             TransactionReceipt transactionReceipt = humanStandardToken
                     .transfer(to, value).send();
@@ -150,7 +150,7 @@ public TransactionResponse<TransferEventResponse> transfer(
     public TransactionResponse<ApprovalEventResponse> approveAndCall(
             List<String> privateFor, String contractAddress, String spender, BigInteger value,
             String extraData) throws Exception {
-        HumanStandardToken humanStandardToken = load(contractAddress, privateFor);
+        HumanStandardToken humanStandardToken = load(contractAddress, privateFor,"",false);
         try {
             TransactionReceipt transactionReceipt = humanStandardToken
                     .approveAndCall(
@@ -164,7 +164,7 @@ public TransactionResponse<ApprovalEventResponse> approveAndCall(
     }
 
     public long allowance(String contractAddress, String ownerAddress, String spenderAddress) throws Exception {
-        HumanStandardToken humanStandardToken = load(contractAddress);
+        HumanStandardToken humanStandardToken = load(contractAddress,"",false);
         try {
             return extractLongValue(humanStandardToken.allowance(
                     ownerAddress, spenderAddress)
@@ -174,16 +174,28 @@ public long allowance(String contractAddress, String ownerAddress, String spende
         }
     }
 
-    private HumanStandardToken load(String contractAddress, List<String> privateFor) {
-        TransactionManager transactionManager = new ClientTransactionManager(
-                quorum, nodeConfiguration.getFromAddress(), privateFor);
+    private HumanStandardToken load(String contractAddress, List<String> privateFor, String fromAddress, boolean withFromAddress) {
+        TransactionManager transactionManager = null;
+        if(withFromAddress){
+            transactionManager = new ClientTransactionManager(
+                    quorum, fromAddress, privateFor);
+        }else{
+            transactionManager = new ClientTransactionManager(
+                    quorum, nodeConfiguration.getFromAddress(), privateFor);            
+        }
         return HumanStandardToken.load(
                 contractAddress, quorum, transactionManager, GAS_PRICE, GAS_LIMIT);
     }
 
-    private HumanStandardToken load(String contractAddress) {
-        TransactionManager transactionManager = new ClientTransactionManager(
-                quorum, nodeConfiguration.getFromAddress(), Collections.emptyList());
+    private HumanStandardToken load(String contractAddress,String fromAddress, boolean withFromAddress ) {
+        TransactionManager transactionManager = null;
+        if(withFromAddress){
+            transactionManager = new ClientTransactionManager(
+                quorum, fromAddress, Collections.emptyList());
+        }else{
+            transactionManager = new ClientTransactionManager(
+                    quorum, nodeConfiguration.getFromAddress(), Collections.emptyList());
+        }
         return HumanStandardToken.load(
                 contractAddress, quorum, transactionManager, GAS_PRICE, GAS_LIMIT);
     }
diff --git a/src/main/java/io/blk/erc20/Controller.java b/src/main/java/io/blk/erc20/Controller.java
index 1ff0037..be70368 100644
--- a/src/main/java/io/blk/erc20/Controller.java
+++ b/src/main/java/io/blk/erc20/Controller.java
@@ -84,7 +84,8 @@ TransactionResponse<ContractService.ApprovalEventResponse> approve(
                 extractPrivateFor(request),
                 contractAddress,
                 approveRequest.getSpender(),
-                approveRequest.getValue());
+                approveRequest.getValue(),
+                approveRequest.getOwner());
     }
 
     @ApiOperation("Get total supply of tokens")
@@ -158,7 +159,8 @@ TransactionResponse<ContractService.TransferEventResponse> transfer(
                 extractPrivateFor(request),
                 contractAddress,
                 transferRequest.getTo(),
-                transferRequest.getValue());
+                transferRequest.getValue(),
+                transferRequest.getFrom());
     }
 
     @ApiOperation(
@@ -214,6 +216,7 @@ static class ContractSpecification {
     static class ApproveRequest {
         private final String spender;
         private final BigInteger value;
+        private final String owner;
     }
 
     @Data
@@ -227,6 +230,7 @@ static class TransferFromRequest {
     static class TransferRequest {
         private final String to;
         private final BigInteger value;
+        private final String from;
     }
 
     @Data