values are the fields that will be updated on the loan application. Only the fields that
are provided in this object will be updated or added to the values object if it doesn't already
exist in the object. The list of valid keys to use in this object can be retrieved from the
GET /forms endpoint. The form that should be used is the default for the loan officer that
the loan application will be attached to. All values should be passed as a string or boolean.
loan_officer_guid is the GUID string of the loan officer that you are updating the loan to. Loan Officer reassignment is only permitted on loan applications which have not been submitted to the LOS.