Requirements: B-1 domestic worker

Employer is USC residing abroad coming to visit U.S. or on a temporary assignmentEmployer is nonimmigrant
Domestic worker has non-immigrant intentDomestic worker has non-immigrant intent
Employment relationship: two choicesDomestic worker has been employed abroad by the employer for at least six months prior to the date of the employer’s admission to the United StatesDomestic worker has been employed abroad by the employer for at least one year prior to the date of the employer’s admission to the United States
Employer has regularly employed a domestic worker and the domestic worker has at least one year experience Employer has regularly employed a domestic worker over a period of several years and the domestic worker has at least one year experience
Signed employment contractSigned employment contract
Source:
 
See 9 FAM 41.31 N9.3.