diff --git a/models/bxml/verbs/Transfer.ts b/models/bxml/verbs/Transfer.ts
index 21e902e..5ad3679 100644
--- a/models/bxml/verbs/Transfer.ts
+++ b/models/bxml/verbs/Transfer.ts
@@ -20,6 +20,8 @@ export interface TransferAttributes {
     diversionTreatment?: string;
     diversionReason?: string;
     privacy?: boolean;
+    requestedAttestationLevel?: string;
+    identity?: string;
 }
 
 /**
diff --git a/tests/unit/models/bxml/verbs/Transfer.test.ts b/tests/unit/models/bxml/verbs/Transfer.test.ts
index 39dd95d..1d93960 100644
--- a/tests/unit/models/bxml/verbs/Transfer.test.ts
+++ b/tests/unit/models/bxml/verbs/Transfer.test.ts
@@ -19,7 +19,9 @@ describe('Transfer', () => {
         tag: 'initialTag',
         diversionTreatment: 'propagate',
         diversionReason: 'user-busy',
-        privacy: true
+        privacy: true,
+        requestedAttestationLevel: 'B',
+        identity: 'eyJhbGciOiJFUzI1NiJ9.eyJhdHRlc3QiOiJBIn0.c2ln;info=<https://cert.example.com/cert.pem>;ppt="shaken"'
     };
 
     const phoneNumber = new PhoneNumber('+19195551234');
@@ -27,7 +29,7 @@ describe('Transfer', () => {
 
     test('should create a Transfer Verb', () => {
         const transfer = new Transfer(attributes);
-        const expected = '<Transfer transferCallerId="+19195551234" transferCallerDisplayName="initialDisplayName" callTimeout="5" transferCompleteUrl="https://initial.com" transferCompleteMethod="POST" transferCompleteFallbackUrl="https://initial.com" transferCompleteFallbackMethod="POST" username="initialUsername" password="initialPassword" fallbackUsername="initialFallbackUsername" fallbackPassword="initialFallbackPassword" tag="initialTag" diversionTreatment="propagate" diversionReason="user-busy" privacy="true"/>';
+        const expected = '<Transfer transferCallerId="+19195551234" transferCallerDisplayName="initialDisplayName" callTimeout="5" transferCompleteUrl="https://initial.com" transferCompleteMethod="POST" transferCompleteFallbackUrl="https://initial.com" transferCompleteFallbackMethod="POST" username="initialUsername" password="initialPassword" fallbackUsername="initialFallbackUsername" fallbackPassword="initialFallbackPassword" tag="initialTag" diversionTreatment="propagate" diversionReason="user-busy" privacy="true" requestedAttestationLevel="B" identity="eyJhbGciOiJFUzI1NiJ9.eyJhdHRlc3QiOiJBIn0.c2ln;info=&lt;https://cert.example.com/cert.pem&gt;;ppt=&quot;shaken&quot;"/>';
 
         expect(transfer).toBeInstanceOf(Transfer);
         expect(transfer).toBeInstanceOf(Verb);
@@ -36,9 +38,9 @@ describe('Transfer', () => {
 
     test('should create a Transfer Verb with nested PhoneNumber and SipUri', () => {
         let transfer = new Transfer(attributes, phoneNumber);
-        const expected = '<Transfer transferCallerId="+19195551234" transferCallerDisplayName="initialDisplayName" callTimeout="5" transferCompleteUrl="https://initial.com" transferCompleteMethod="POST" transferCompleteFallbackUrl="https://initial.com" transferCompleteFallbackMethod="POST" username="initialUsername" password="initialPassword" fallbackUsername="initialFallbackUsername" fallbackPassword="initialFallbackPassword" tag="initialTag" diversionTreatment="propagate" diversionReason="user-busy" privacy="true"><PhoneNumber>+19195551234</PhoneNumber></Transfer>';
-        const expectedSingle = '<Transfer transferCallerId="+19195551234" transferCallerDisplayName="initialDisplayName" callTimeout="5" transferCompleteUrl="https://initial.com" transferCompleteMethod="POST" transferCompleteFallbackUrl="https://initial.com" transferCompleteFallbackMethod="POST" username="initialUsername" password="initialPassword" fallbackUsername="initialFallbackUsername" fallbackPassword="initialFallbackPassword" tag="initialTag" diversionTreatment="propagate" diversionReason="user-busy" privacy="true"><PhoneNumber>+19195551234</PhoneNumber><SipUri>sip:1-999-123-4567@voip-provider.example.net</SipUri></Transfer>';
-        const expectedMultiple = '<Transfer transferCallerId="+19195551234" transferCallerDisplayName="initialDisplayName" callTimeout="5" transferCompleteUrl="https://initial.com" transferCompleteMethod="POST" transferCompleteFallbackUrl="https://initial.com" transferCompleteFallbackMethod="POST" username="initialUsername" password="initialPassword" fallbackUsername="initialFallbackUsername" fallbackPassword="initialFallbackPassword" tag="initialTag" diversionTreatment="propagate" diversionReason="user-busy" privacy="true"><PhoneNumber>+19195551234</PhoneNumber><SipUri>sip:1-999-123-4567@voip-provider.example.net</SipUri><SipUri>sip:1-999-123-4567@voip-provider.example.net</SipUri><PhoneNumber>+19195551234</PhoneNumber></Transfer>';
+        const expected = '<Transfer transferCallerId="+19195551234" transferCallerDisplayName="initialDisplayName" callTimeout="5" transferCompleteUrl="https://initial.com" transferCompleteMethod="POST" transferCompleteFallbackUrl="https://initial.com" transferCompleteFallbackMethod="POST" username="initialUsername" password="initialPassword" fallbackUsername="initialFallbackUsername" fallbackPassword="initialFallbackPassword" tag="initialTag" diversionTreatment="propagate" diversionReason="user-busy" privacy="true" requestedAttestationLevel="B" identity="eyJhbGciOiJFUzI1NiJ9.eyJhdHRlc3QiOiJBIn0.c2ln;info=&lt;https://cert.example.com/cert.pem&gt;;ppt=&quot;shaken&quot;"><PhoneNumber>+19195551234</PhoneNumber></Transfer>';
+        const expectedSingle = '<Transfer transferCallerId="+19195551234" transferCallerDisplayName="initialDisplayName" callTimeout="5" transferCompleteUrl="https://initial.com" transferCompleteMethod="POST" transferCompleteFallbackUrl="https://initial.com" transferCompleteFallbackMethod="POST" username="initialUsername" password="initialPassword" fallbackUsername="initialFallbackUsername" fallbackPassword="initialFallbackPassword" tag="initialTag" diversionTreatment="propagate" diversionReason="user-busy" privacy="true" requestedAttestationLevel="B" identity="eyJhbGciOiJFUzI1NiJ9.eyJhdHRlc3QiOiJBIn0.c2ln;info=&lt;https://cert.example.com/cert.pem&gt;;ppt=&quot;shaken&quot;"><PhoneNumber>+19195551234</PhoneNumber><SipUri>sip:1-999-123-4567@voip-provider.example.net</SipUri></Transfer>';
+        const expectedMultiple = '<Transfer transferCallerId="+19195551234" transferCallerDisplayName="initialDisplayName" callTimeout="5" transferCompleteUrl="https://initial.com" transferCompleteMethod="POST" transferCompleteFallbackUrl="https://initial.com" transferCompleteFallbackMethod="POST" username="initialUsername" password="initialPassword" fallbackUsername="initialFallbackUsername" fallbackPassword="initialFallbackPassword" tag="initialTag" diversionTreatment="propagate" diversionReason="user-busy" privacy="true" requestedAttestationLevel="B" identity="eyJhbGciOiJFUzI1NiJ9.eyJhdHRlc3QiOiJBIn0.c2ln;info=&lt;https://cert.example.com/cert.pem&gt;;ppt=&quot;shaken&quot;"><PhoneNumber>+19195551234</PhoneNumber><SipUri>sip:1-999-123-4567@voip-provider.example.net</SipUri><SipUri>sip:1-999-123-4567@voip-provider.example.net</SipUri><PhoneNumber>+19195551234</PhoneNumber></Transfer>';
 
         expect(transfer).toBeInstanceOf(Transfer);
         expect(transfer).toBeInstanceOf(Verb);
@@ -53,7 +55,7 @@ describe('Transfer', () => {
 
     test('should test the addTransferRecipients method  method when no verbs are initially nested', () => {
         const transfer = new Transfer(attributes);
-        const expected = '<Transfer transferCallerId="+19195551234" transferCallerDisplayName="initialDisplayName" callTimeout="5" transferCompleteUrl="https://initial.com" transferCompleteMethod="POST" transferCompleteFallbackUrl="https://initial.com" transferCompleteFallbackMethod="POST" username="initialUsername" password="initialPassword" fallbackUsername="initialFallbackUsername" fallbackPassword="initialFallbackPassword" tag="initialTag" diversionTreatment="propagate" diversionReason="user-busy" privacy="true"><PhoneNumber>+19195551234</PhoneNumber></Transfer>';
+        const expected = '<Transfer transferCallerId="+19195551234" transferCallerDisplayName="initialDisplayName" callTimeout="5" transferCompleteUrl="https://initial.com" transferCompleteMethod="POST" transferCompleteFallbackUrl="https://initial.com" transferCompleteFallbackMethod="POST" username="initialUsername" password="initialPassword" fallbackUsername="initialFallbackUsername" fallbackPassword="initialFallbackPassword" tag="initialTag" diversionTreatment="propagate" diversionReason="user-busy" privacy="true" requestedAttestationLevel="B" identity="eyJhbGciOiJFUzI1NiJ9.eyJhdHRlc3QiOiJBIn0.c2ln;info=&lt;https://cert.example.com/cert.pem&gt;;ppt=&quot;shaken&quot;"><PhoneNumber>+19195551234</PhoneNumber></Transfer>';
 
         transfer.addTransferRecipients(phoneNumber);
         expect(transfer.toBxml()).toBe(expected);