>I'm not a lawyer and I would love the hear opinion about this. Do companies use L-1 visas to workaround H1B requirements
Yes, often they come over under the veil of a 'temporary assignment' so they remain on foreign payroll. They can stay up to three years before having to renew/reapply. I worked for an immigration law firm and I saw wages as low as $15,000/year coming from South Korea to work at Fortune 500s.