Immigration Lawyer for my Husband

My husband and I were married about 4 years ago and almost immediately went to a lawyer to help us file the paperwork for his green card. At the time we had almost no knowledge of the system and didn’t realize that the lawyer didn’t file the right paperwork. We are now in the process of fighting his deportation and are in desperate need of help to pay for a new lawyer. We spent almost $15k the first time and now need to come up with another $12k or my husband will be forced out of the country. Anything you can do to help would be greatly appreciated.