How can I get a legal immigration status when I overstayed the time of my visa?

If you have a commitment to agricultural work, you may wish to stay as any comprehensive immigration reform legislation will allow agricultural workers who make a commitment to continue working in the field to have a faster path to citizenship than others who may gain legalization. This country has need for agricultural workers to plant and harvest its crops, and therefore the proposed immigration legislation will benefit this category of workers. 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.

If marry a US citizen, then your overstay will not be a problem.  Otherwise, you would need to leave and subject yourself to the unlawful presence bar.   You may be eligible for a waiver once you reapply for a new visa, but that will depend on a number of factors specific to your situation at that time.