diff --git a/src/utils/MoneroUtils.cpp b/src/utils/MoneroUtils.cpp
index 472e5df..a56464f 100644
--- a/src/utils/MoneroUtils.cpp
+++ b/src/utils/MoneroUtils.cpp
@@ -72,69 +72,24 @@ void MoneroUtils::binaryBlocksToJson(const std::string &bin, std::string &json)
   json = ss.str();
 }
 
-boost::property_tree::ptree MoneroUtils::toPropertyTree(const MoneroAccount& account) {
-  cout << "toPropertyTree(account)" << endl;
-  boost::property_tree::ptree accountNode;
-  if (account.index != nullptr) accountNode.put("index", *account.index);
-  if (account.primaryAddress != nullptr) accountNode.put("primaryAddress", *account.primaryAddress);
-  if (account.balance != nullptr) accountNode.put("balance", *account.balance);
-  if (account.unlockedBalance != nullptr) accountNode.put("unlockedBalance", *account.unlockedBalance);
-  if (!account.subaddresses.empty()) {
-    boost::property_tree::ptree subaddressesNode;
-    for (const auto& subaddress : account.subaddresses) {
-      subaddressesNode.push_back(std::make_pair("", toPropertyTree(subaddress)));
-    }
-    accountNode.add_child("subaddresses", subaddressesNode);
-  }
-  return accountNode;
-}
-
-boost::property_tree::ptree MoneroUtils::toPropertyTree(const MoneroSubaddress& subaddress) {
-  cout << "toPropertyTree(subaddress)" << endl;
-  boost::property_tree::ptree subaddressNode;
-  if (subaddress.accountIndex != nullptr) subaddressNode.put("accountIndex", *subaddress.accountIndex);
-  if (subaddress.index != nullptr) subaddressNode.put("index", *subaddress.index);
-  if (subaddress.address != nullptr) subaddressNode.put("address", *subaddress.address);
-  if (subaddress.label != nullptr) subaddressNode.put("label", *subaddress.label);
-  if (subaddress.balance != nullptr) subaddressNode.put("balance", *subaddress.balance);
-  if (subaddress.unlockedBalance != nullptr) subaddressNode.put("unlockedBalance", *subaddress.unlockedBalance);
-  if (subaddress.numUnspentOutputs != nullptr) subaddressNode.put("numUnspentOutputs", *subaddress.numUnspentOutputs);
-  if (subaddress.isUsed != nullptr) subaddressNode.put("isUsed", *subaddress.isUsed);
-  if (subaddress.numBlocksToUnlock != nullptr) subaddressNode.put("numBlocksToUnlock", *subaddress.numBlocksToUnlock);
-  return subaddressNode;
-}
-
-void MoneroUtils::toModel(const boost::property_tree::ptree& node, MoneroTxWallet& tx) {
-  cout << "toModel(txWallet)" << endl;
-  for (boost::property_tree::ptree::const_iterator it = node.begin(); it != node.end(); ++it) {
-    string key = it->first;
-    if (key == string("height")) {
-      cout << "Setting height!" << endl;
-      MoneroBlock block;
-      block.height = std::shared_ptr<uint64_t>(std::make_shared<uint64_t>((uint64_t) 7));
-      tx.block = std::shared_ptr<MoneroBlock>(std::make_shared<MoneroBlock>(block));
-    }
-  }
-}
-
-string MoneroUtils::serialize(const MoneroAccount& account) {
-  cout << "serialize(account)" << endl;
-
-  // build property tree from account
-  boost::property_tree::ptree accountNode;
-  //addNode(accountNode, string("index"), account.index);
-
-  // convert root to string
-  std::stringstream ss;
-  boost::property_tree::write_json(ss, accountNode, false);
-  return ss.str();
-}
-
-string MoneroUtils::serialize(const MoneroSubaddress& subaddress) {
-  cout << "serialize(subaddress)" << endl;
-  throw runtime_error("serialize(subaddress) not implemented");
-}
-
+//string MoneroUtils::serialize(const MoneroAccount& account) {
+//  cout << "serialize(account)" << endl;
+//
+//  // build property tree from account
+//  boost::property_tree::ptree accountNode;
+//  //addNode(accountNode, string("index"), account.index);
+//
+//  // convert root to string
+//  std::stringstream ss;
+//  boost::property_tree::write_json(ss, accountNode, false);
+//  return ss.str();
+//}
+//
+//string MoneroUtils::serialize(const MoneroSubaddress& subaddress) {
+//  cout << "serialize(subaddress)" << endl;
+//  throw runtime_error("serialize(subaddress) not implemented");
+//}
+//
 //string MoneroUtils::serialize(const MoneroBlock& block) {
 //  throw runtime_error("serialize(block) not implemented");
 //}
@@ -158,3 +113,35 @@ string MoneroUtils::serialize(const MoneroSubaddress& subaddress) {
 //void MoneroUtils::deserializeOutputWallet(const string& outputStr, MoneroOutputWallet& output) {
 //  throw runtime_error("deserializeOutputWallet(outputStr) not implemented");
 //}
+
+boost::property_tree::ptree MoneroUtils::toPropertyTree(const MoneroAccount& account) {
+  cout << "toPropertyTree(account)" << endl;
+  boost::property_tree::ptree accountNode;
+  if (account.index != nullptr) accountNode.put("index", *account.index);
+  if (account.primaryAddress != nullptr) accountNode.put("primaryAddress", *account.primaryAddress);
+  if (account.balance != nullptr) accountNode.put("balance", *account.balance);
+  if (account.unlockedBalance != nullptr) accountNode.put("unlockedBalance", *account.unlockedBalance);
+  if (!account.subaddresses.empty()) {
+    boost::property_tree::ptree subaddressesNode;
+    for (const auto& subaddress : account.subaddresses) {
+      subaddressesNode.push_back(std::make_pair("", toPropertyTree(subaddress)));
+    }
+    accountNode.add_child("subaddresses", subaddressesNode);
+  }
+  return accountNode;
+}
+
+boost::property_tree::ptree MoneroUtils::toPropertyTree(const MoneroSubaddress& subaddress) {
+  cout << "toPropertyTree(subaddress)" << endl;
+  boost::property_tree::ptree subaddressNode;
+  if (subaddress.accountIndex != nullptr) subaddressNode.put("accountIndcd ex", *subaddress.accountIndex);
+  if (subaddress.index != nullptr) subaddressNode.put("index", *subaddress.index);
+  if (subaddress.address != nullptr) subaddressNode.put("address", *subaddress.address);
+  if (subaddress.label != nullptr) subaddressNode.put("label", *subaddress.label);
+  if (subaddress.balance != nullptr) subaddressNode.put("balance", *subaddress.balance);
+  if (subaddress.unlockedBalance != nullptr) subaddressNode.put("unlockedBalance", *subaddress.unlockedBalance);
+  if (subaddress.numUnspentOutputs != nullptr) subaddressNode.put("numUnspentOutputs", *subaddress.numUnspentOutputs);
+  if (subaddress.isUsed != nullptr) subaddressNode.put("isUsed", *subaddress.isUsed);
+  if (subaddress.numBlocksToUnlock != nullptr) subaddressNode.put("numBlocksToUnlock", *subaddress.numBlocksToUnlock);
+  return subaddressNode;
+}
diff --git a/src/utils/MoneroUtils.h b/src/utils/MoneroUtils.h
index 0378c40..8da5a10 100644
--- a/src/utils/MoneroUtils.h
+++ b/src/utils/MoneroUtils.h
@@ -28,9 +28,9 @@ namespace MoneroUtils
 //    throw runtime_error("Not implemented");
 //  }
 //
-  string serialize(const MoneroAccount& account);
-
-  string serialize(const MoneroSubaddress& subaddress);
+//  string serialize(const MoneroAccount& account);
+//
+//  string serialize(const MoneroSubaddress& subaddress);
 //
 //  string serialize(const MoneroBlock& block);
 //
@@ -44,12 +44,29 @@ namespace MoneroUtils
 //
 //  void deserializeOutputWallet(const string& outputStr, MoneroOutputWallet& output);
 
+  //  template <class T> string serialize(const vector<T> types) {
+  //    cout << "serialize(types)" << endl;
+  //    boost::property_tree::ptree root;
+  //    boost::property_tree::ptree typesNode;
+  //    for (const auto& type : types)  {
+  //      boost::property_tree::ptree typeNode;
+  //      typeNode.put("", serialize(type));
+  //      typesNode.push_back(std::make_pair("", typeNode));
+  //    }
+  //    root.add_child("types", typesNode);
+  //
+  //    // serialize property tree to json
+  //    std::stringstream ss;
+  //    boost::property_tree::write_json(ss, root, false);
+  //    string str = ss.str();
+  //    return str;
+  //  }
+
   boost::property_tree::ptree toPropertyTree(const MoneroAccount& account);
 
   boost::property_tree::ptree toPropertyTree(const MoneroSubaddress& subaddress);
 
-  void toModel(const boost::property_tree::ptree& node, MoneroTxWallet& tx);
-
+  //  // TODO: template implementation here, could move to MoneroUtils.hpp per https://stackoverflow.com/questions/3040480/c-template-function-compiles-in-header-but-not-implementation
   template <class T> boost::property_tree::ptree toPropertyTree(const vector<T> types) {
     cout << "toPropertyTree(types)" << endl;
     boost::property_tree::ptree typeNodes;
@@ -59,25 +76,6 @@ namespace MoneroUtils
     return typeNodes;
   }
 
-  // TODO: template implementation here, could move to MoneroUtils.hpp per https://stackoverflow.com/questions/3040480/c-template-function-compiles-in-header-but-not-implementation
-  template <class T> string serialize(const vector<T> types) {
-    cout << "serialize(types)" << endl;
-    boost::property_tree::ptree root;
-    boost::property_tree::ptree typesNode;
-    for (const auto& type : types)  {
-      boost::property_tree::ptree typeNode;
-      typeNode.put("", serialize(type));
-      typesNode.push_back(std::make_pair("", typeNode));
-    }
-    root.add_child("types", typesNode);
-
-    // serialize property tree to json
-    std::stringstream ss;
-    boost::property_tree::write_json(ss, root, false);
-    string str = ss.str();
-    return str;
-  }
-
   /**
    * Modified from core_rpc_server.cpp to return a string.
    *
diff --git a/src/wallet/MoneroWallet.h b/src/wallet/MoneroWallet.h
index 6a0907a..76139d9 100644
--- a/src/wallet/MoneroWallet.h
+++ b/src/wallet/MoneroWallet.h
@@ -137,9 +137,7 @@ namespace monero {
    *
    * All transfers are returned except those that do not meet the criteria defined in this request.
    */
-  struct MoneroTransferRequest {
-    shared_ptr<uint64_t> amount;
-    shared_ptr<uint32_t> accountIndex;
+  struct MoneroTransferRequest : public MoneroTransfer {
     shared_ptr<bool> isIncoming;
     shared_ptr<string> address;
     vector<string> addresses;
@@ -167,6 +165,17 @@ namespace monero {
     shared_ptr<MoneroTransferRequest> transferRequest;
   };
 
+  /**
+   * Configures a request to retrieve wallet outputs (i.e. outputs that the wallet has or had the
+   * ability to spend).
+   *
+   * All outputs are returned except those that do not meet the criteria defined in this request.
+   */
+  struct MoneroOutputRequest : public MoneroOutput {
+    vector<uint32_t> subaddressIndices;
+    shared_ptr<MoneroTxRequest> txRequest;
+  };
+
   // --------------------------------- LISTENERS ------------------------------
 
   //  class i_wallet2_callback