Yes. Depending on what it is you want to modify you may be able to do it by a simple letter agreement between you or you may have to file a motion with the court to modify the final judgment. If it involves child support you’ll probably have to get the court to modify it. But if it only involves disposition of or proceeds from sale of the house, probably not. Since your house is probably the bulk of your assets, you may want to at least ask your lawyer. But whatever agreement you make — do it in writing.

** Note: This is a general discussion of the subject matter of your question and not legal advice. Local laws or your particular situation may change the general rules. For a specific answer to your question you should consult legal counsel with whom you can discuss all the facts of your case. **