While the fact that a legal document is handwritten has no bearing on its validity, it would be impossible to know if your own handwritten agreement is legal and valid without reviewing the LANGUAGE used within.
In a pro se (“do it yourself”) situation, it would be far safer for a couple to use a self-help legal document written by an attorney that is then completed by the couple, so that the language used within the baseline portions of the document “covers all the bases”. Then that document can be customized with the entry of information specific to your own personal marital situation.
Written by qualified attorneys, Standard Legal’s Separation Agreement costs just $17.95 — a very affordable amount to ensure that the legal document you create contains all the necessary language to make it valid.
Complete details at Standard Legal’s Marital Separation Agreement legal forms software page.