Here is the Law , Case and Point , ; Just The Facts
Federal Immigration and Nationality Act
Section 8 USC 1324(a)(1)(A)(iv)(b)(iii)
“Any person who . . . encourages or induces an alien to . . . reside . . . knowing or in reckless disregard of the fact that such . . . residence is . . . in violation of law, shall be punished as provided . . . for each alien in respect to whom such a violation occurs . . . fined under title 18 . . . imprisoned not more than 5 years, or both.”
Section 274 felonies under the federal Immigration and Nationality Act, INA 274A(a)(1)(A):
A person (including a group of persons, business, organization, or local government) commits a federal felony when she or he:

* assists an alien s/he should reasonably know is illegally in the U.S. or who lacks employment authorization, by transporting, sheltering, or assisting him or her to obtain employment, or
* encourages that alien to remain in the U.S. by referring him or her to an employer or by acting as employer or agent for an employer in any way, or
* knowingly assists illegal aliens due to personal convictions.

Penalties upon conviction include criminal fines, imprisonment, and forfeiture of vehicles and real property used to commit the crime. Anyone employing or contracting with an illegal alien without verifying his or her work authorization status is guilty of a misdemeanor. Aliens and employers violating immigration laws are subject to arrest, detention, and seizure of their vehicles or property. In addition, individuals or entities who engage in racketeering enterprises that commit (or conspire to commit) immigration-related felonies are subject to private civil suits for treble damages and injunctive relief.
Recruitment and Employment of Illegal Aliens
It is unlawful to hire an alien, to recruit an alien, or to refer an alien for a fee, knowing the alien is unauthorized to work in the United States. It is equally unlawful to continue to employ an alien knowing that the alien is unauthorized to work. Employers may give preference in recruitment and hiring to a U.S. citizen over an alien with work authorization only where the U.S. citizen is equally or better qualified. It is unlawful to hire an individual for employment in the United States without complying with employment eligibility verification requirements. Requirements include examination of identity documents and completion of Form I-9 for every employee hired. Employers must retain all I-9s, and, with three days’ advance notice, the forms must be made available for inspection. Employment includes any service or labor performed for any type of remuneration within the United States, with the exception of sporadic domestic service by an individual in a private home. Day laborers or other casual workers engaged in any compensated activity (with the above exception) are employees for purposes of immigration law. An employer includes an agent or anyone acting directly or indirectly in the interest of the employer. For purposes of verification of authorization to work, employer also means an independent contractor, or a contractor other than the person using the alien labor. The use of temporary or short-term contracts cannot be used to circumvent the employment authorization verification requirements. If employment is to be for less than the usual three days allowed for completing the I-9 Form requirement, the form must be completed immediately at the time of hire.