If you have done the above search you would have found an example "short form" disclosure.
Servicing Transfer Disclosure
This disclosure is being given in compliance with Section 2605(a) of the Real Estate Settlement Procedures Act (RESPA).
The ABCDEF Bank may assign, sell or transfer the servicing of your loan to another servicer any time during the term of the loan.
Please contact us at the above address or telephone number if you have any questions concerning this disclosure.
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The opinions expressed are mine and they are not to be taken as legal advice.