H1- B visa is common option for US companies who are trying to hire foreign workers. Only a qualified H-1B visa attorney in Washington DC can guide you throughout the process without any hurdle. The relationship between the employer and the employee should be in a good way when applying for petition. The employer should possess educational qualification related to the profession he is going to pursue in US. The validity for H1- B Visa is 3 years and it can be extended to 3 more years. For more details, visit http://www.ilexlaw.com/h-1b-visas/