Since I’ve already moved out of the marital house, is it okay/legal to sign a lease before filing for a divorce?
I do not practice law in your state. Therefore, I cannot inform you as to the specific laws of your state, but I can provide you with general tips in divorce.
Generally yes. I am based out of Ohio, and here, you are able to do anything you want prior to the filing of the case. Once the case is filed, things can get muddied with restraining orders that limit your ability to do anything financially out of the ordinary, such as renting an apartment.
However, the domestic rules vary wildly from state to state, so you should consider meeting with an attorney in your jurisdiction to ensure you will not run afoul of any local rules by proceeding with your lease.