Changes in the law may be able to help you if you are considering this process. Best advice, seek out a competent immigration lawyer now to find out your options.
Currently changes in the law may allow you to adjust, ie, Approved DACA application and a possible parole application, will change your entry status upon return from travel abroad. You should renew your search for a qualified attorney to help you with this matter! You could be pleasantly surprised.
Changes in the law and procedure since the original posting may benefit some applicants who initially entered the US without a visa or proper immigration documentation who are now married to a US citizen. For instance, those qualified for DACA or TPS who briefly depart the US pursuant to Advance Parole and re-enter may now qualify for a green card without waiting outside the US and applying for an immigrant visa at a consulate abroad. These are now routinely being granted to applicants who otherwise meet all other requirements for adjustment of status to a lawful permanent resident.