Can I apply for green card after L1 approval

There is no time restriction on your applying for a green card after obtaining the L-1 approval. Most L-1 visas have dual intent which means that you can intend to immigrate while at the same time maintaining your lawful nonimmigrant status. Due to the limitations of the Lawyers.com Forums, Alan Lee, Esq.'s (the "Firm") participation in responding to questions posted herein does not constitute legal advice, nor legal representation of the person or entity posting a question. No Attorney/Client relationship is or shall be construed to be created hereby. The information provided herein by the Firm is general, and requires that the poster obtain specific legal advice from an attorney. The poster shall not rely upon the information provided herein as legal advice nor as the basis for making any decisions of legal consequence.