diff --git a/bit-wallet/bit-address b/bit-wallet/bit-address
index fb276bb..c1f6ddc 100644
--- a/bit-wallet/bit-address
+++ b/bit-wallet/bit-address
@@ -6,8 +6,8 @@ var common = require('./common');
 
 program
   .version('0.0.1')
-  .option('-c,--config [file]', 'Wallet config filename')
-  .option('-v,--verbose', 'be verbose')
+  .option('-c, --config [file]', 'Wallet config filename')
+  .option('-v, --verbose', 'be verbose')
   .parse(process.argv);
 
 var args = program.args;
diff --git a/bit-wallet/bit-addresses b/bit-wallet/bit-addresses
index d01a769..31f2a93 100644
--- a/bit-wallet/bit-addresses
+++ b/bit-wallet/bit-addresses
@@ -7,8 +7,8 @@ var common = require('./common');
 
 program
   .version('0.0.1')
-  .option('-c,--config [file]', 'Wallet config filename')
-  .option('-v,--verbose', 'be verbose')
+  .option('-c, --config [file]', 'Wallet config filename')
+  .option('-v, --verbose', 'be verbose')
   .parse(process.argv);
 
 var args = program.args;
diff --git a/bit-wallet/bit-balance b/bit-wallet/bit-balance
index 3a9763c..7c95f3e 100644
--- a/bit-wallet/bit-balance
+++ b/bit-wallet/bit-balance
@@ -6,8 +6,8 @@ var common = require('./common');
 
 program
   .version('0.0.1')
-  .option('-c,--config [file]', 'Wallet config filename')
-  .option('-v,--verbose', 'be verbose')
+  .option('-c, --config [file]', 'Wallet config filename')
+  .option('-v, --verbose', 'be verbose')
   .parse(process.argv);
 
 var args = program.args;
diff --git a/bit-wallet/bit-create b/bit-wallet/bit-create
index 6cdacee..01137a6 100755
--- a/bit-wallet/bit-create
+++ b/bit-wallet/bit-create
@@ -6,8 +6,8 @@ var common = require('./common');
 
 program
   .version('0.0.1')
-  .option('-c,--config [file]', 'Wallet config filename')
-  .option('-n,--network [networkname]', 'livenet|testnet', String, 'livenet')
+  .option('-c, --config [file]', 'Wallet config filename')
+  .option('-n, --network [networkname]', 'livenet|testnet', String, 'livenet')
   .usage('[options] <walletName> <m-n> [copayerName]')
   .parse(process.argv);
 
diff --git a/bit-wallet/bit-create.js b/bit-wallet/bit-create.js
deleted file mode 100644
index 1f02e8c..0000000
--- a/bit-wallet/bit-create.js
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/usr/bin/env node
-
-var program = require('commander');
-var cli = require('../lib/clilib.js');
- 
-program
-  .version('0.0.1')
-  .parse(process.argv);
-
-
diff --git a/bit-wallet/bit-join b/bit-wallet/bit-join
index 63f9bc9..4a14659 100644
--- a/bit-wallet/bit-join
+++ b/bit-wallet/bit-join
@@ -6,7 +6,7 @@ var common = require('./common');
 
 program
   .version('0.0.1')
-  .option('-c,--config [file]', 'Wallet config filename')
+  .option('-c, --config [file]', 'Wallet config filename')
   .usage('[options] <secret> [copayerName]')
   .parse(process.argv);
 
diff --git a/bit-wallet/bit-send b/bit-wallet/bit-send
index e0db849..0fc35d3 100644
--- a/bit-wallet/bit-send
+++ b/bit-wallet/bit-send
@@ -6,8 +6,8 @@ var common = require('./common');
 
 program
 .version('0.0.1')
-.option('-c,--config [file]', 'Wallet config filename')
-.option('-v,--verbose', 'be verbose')
+.option('-c, --config [file]', 'Wallet config filename')
+.option('-v, --verbose', 'be verbose')
 .usage('[options] <address> <amount> <message>')
 .parse(process.argv);
 
diff --git a/bit-wallet/bit-status b/bit-wallet/bit-status
index 73ee0b6..6d98416 100644
--- a/bit-wallet/bit-status
+++ b/bit-wallet/bit-status
@@ -6,8 +6,8 @@ var common = require('./common');
 
 program
   .version('0.0.1')
-  .option('-c,--config [file]', 'Wallet config filename')
-  .option('-v,--verbose', 'be verbose')
+  .option('-c, --config [file]', 'Wallet config filename')
+  .option('-v, --verbose', 'be verbose')
   .parse(process.argv);
 
 var args = program.args;
diff --git a/lib/clilib.js b/lib/clilib.js
index 463672f..9ac09e1 100644
--- a/lib/clilib.js
+++ b/lib/clilib.js
@@ -72,8 +72,6 @@ CliLib.prototype._loadAndCheck = function() {
     process.exit(1);
   }
 
-  // TODO
-  delete data['verified'];
   if (data.verified == 'corrupt') {
     log.error('The wallet is tagged as corrupt. Some of the copayers cannot be verified to have known the wallet secret.');
     process.exit(1);
@@ -143,10 +141,10 @@ CliLib.prototype._joinWallet = function(data, secret, copayerName, cb) {
 
   var secretSplit = secret.split(':');
   var walletId = secretSplit[0];
-  var privKey = Bitcore.PrivateKey.fromString(secretSplit[1]);
+  var walletPrivKey = Bitcore.PrivateKey.fromString(secretSplit[1]);
 
   var xPubKey = new Bitcore.HDPublicKey(data.xPrivKey);
-  var xPubKeySignature = SignUtils.sign(xPubKey.toString(), privKey);
+  var xPubKeySignature = SignUtils.sign(xPubKey.toString(), walletPrivKey);
 
   var signingPrivKey = (new Bitcore.HDPrivateKey(data.xPrivKey)).derive('m/1/0').privateKey;
 
@@ -171,6 +169,7 @@ CliLib.prototype._joinWallet = function(data, secret, copayerName, cb) {
 
     var wallet = body.wallet;
     data.copayerId = body.copayerId;
+    data.walletPrivKey = walletPrivKey;
     data.signingPrivKey = signingPrivKey.toString();
     data.m = wallet.m;
     data.n = wallet.n;
diff --git a/lib/server.js b/lib/server.js
index c6a727e..4b58469 100644
--- a/lib/server.js
+++ b/lib/server.js
@@ -332,9 +332,8 @@ CopayServer.prototype._getUtxos = function(cb) {
 
   // Get addresses for this wallet
   self.storage.fetchAddresses(self.walletId, function(err, addresses) {
-console.log('[server.js.334:addresses:]',addresses); //TODO
     if (err) return cb(err);
-    if (addresses.length == 0) 
+    if (addresses.length == 0)
       return cb(null, []);
 
     var addressStrs = _.pluck(addresses, 'address');
@@ -389,7 +388,6 @@ CopayServer.prototype.getBalance = function(opts, cb) {
   var self = this;
 
   self._getUtxos(function(err, utxos) {
-console.log('[server.js.390:utxos:]',utxos); //TODO
     if (err) return cb(err);
 
     var balance = {};
@@ -445,15 +443,13 @@ CopayServer.prototype._selectUtxos = function(txp, utxos) {
 CopayServer.prototype.createTx = function(opts, cb) {
   var self = this;
 
-  if (!Utils.checkRequired(opts, ['toAddress', 'amount']))
+  if (!Utils.checkRequired(opts, ['toAddress', 'amount', 'proposalSignature']))
     return cb(new ClientError('Required argument missing'));
 
   Utils.runLocked(self.walletId, cb, function(cb) {
     self.getWallet({}, function(err, wallet) {
       if (err) return cb(err);
       if (!wallet.isComplete()) return cb(new ClientError('Wallet is not complete'));
-      if (wallet.isShared() && !Utils.checkRequired(opts, 'proposalSignature'))
-        return cb(new ClientError('Proposal signature is required for shared wallets'));
 
       var copayer = wallet.getCopayer(self.copayerId);
       var msg = opts.toAddress + '|' + opts.amount + '|' + opts.message;
diff --git a/lib/signutils.js b/lib/signutils.js
index 55c8877..c8913c1 100644
--- a/lib/signutils.js
+++ b/lib/signutils.js
@@ -1,4 +1,3 @@
-
 var _ = require('lodash');
 var Bitcore = require('bitcore');
 var PrivateKey = Bitcore.PrivateKey;
@@ -8,14 +7,13 @@ var ECDSA = Bitcore.crypto.ECDSA;
 var Hash = Bitcore.crypto.Hash;
 var BufferReader = Bitcore.encoding.BufferReader;
 
-  
 
-var SignUtils = function () {
-};
+
+var SignUtils = function() {};
 
 /* TODO: It would be nice to be compatible with bitcoind signmessage. How
  * the hash is calculated there? */
-SignUtils.hash = function (text) {
+SignUtils.hash = function(text) {
   var buf = new Buffer(text);
   var ret = Hash.sha256sha256(buf);
   ret = new BufferReader(ret).readReverse();
@@ -23,14 +21,14 @@ SignUtils.hash = function (text) {
 };
 
 
-SignUtils.sign = function (text, privKey) {
+SignUtils.sign = function(text, privKey) {
   var priv = new PrivateKey(privKey);
   var hash = SignUtils.hash(text);
   return ECDSA.sign(hash, priv, 'little').toString();
 };
 
 
-SignUtils.verify = function (text, signature, pubKey) {
+SignUtils.verify = function(text, signature, pubKey) {
   var pub = new PublicKey(pubKey);
   var hash = SignUtils.hash(text);
 
diff --git a/test/integration.js b/test/integration.js
index 131b32b..f71df22 100644
--- a/test/integration.js
+++ b/test/integration.js
@@ -167,9 +167,13 @@ helpers.createProposalOpts = function(toAddress, amount, message, signingKey) {
     toAddress: toAddress,
     amount: helpers.toSatoshi(amount),
     message: message,
+    proposalSignature: null,
   };
   var msg = opts.toAddress + '|' + opts.amount + '|' + opts.message;
-  opts.proposalSignature = SignUtils.sign(msg, signingKey);
+  try {
+    opts.proposalSignature = SignUtils.sign(msg, signingKey);
+  } catch (ex) {}
+
   return opts;
 };
 
@@ -667,6 +671,34 @@ describe('Copay server', function() {
       });
     });
 
+    it('should fail to create tx with invalid proposal signature', function(done) {
+      helpers.createUtxos(server, wallet, [100, 200], function(utxos) {
+        helpers.stubBlockExplorer(server, utxos);
+        var txOpts = helpers.createProposalOpts('18PzpUFkFZE8zKWUPvfykkTxmB9oMR8qP7', 80, null, 'dummy');
+
+        server.createTx(txOpts, function(err, tx) {
+          should.not.exist(tx);
+          err.should.exist;
+          err.message.should.equal('Invalid proposal signature');
+          done();
+        });
+      });
+    });
+
+    it('should fail to create tx with proposal signed by another copayer', function(done) {
+      helpers.createUtxos(server, wallet, [100, 200], function(utxos) {
+        helpers.stubBlockExplorer(server, utxos);
+        var txOpts = helpers.createProposalOpts('18PzpUFkFZE8zKWUPvfykkTxmB9oMR8qP7', 80, null, TestData.copayers[1].privKey);
+
+        server.createTx(txOpts, function(err, tx) {
+          should.not.exist(tx);
+          err.should.exist;
+          err.message.should.equal('Invalid proposal signature');
+          done();
+        });
+      });
+    });
+
     it('should fail to create tx for address invalid address', function(done) {
       helpers.createUtxos(server, wallet, [100, 200], function(utxos) {
         helpers.stubBlockExplorer(server, utxos);