For parents immigration can i file I130 online and I864 through mail

If you are attempting to file adjustment of status for your mother who is here in the US, that would be a paper filing featuring forms I-130, I-485, and I-864. If you are attempting to file for your mother who is overseas and will interview for her immigrant visa at the US consulate or embassy abroad, the I-864 support document does not come into effect until the I-130 is approved and the case forwarded to the National Visa Center (NVC). In such case, the I-130 petition can be filed online. The I-864 will be requested in the second part of the case by the NVC. Due to the limitations of the Lawyers.com Forums, Alan Lee & Arthur Lee, Esqs.’ (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.