If the estate sold a house that it owned, it is almost a certainty that an estate income tax return (1041) would be required to be filed.
There is also some missing information in your post, specifically the use to which the house (or houses) was being put (e.g., held for investment, rental use, personal use, or some combination thereof).
Your best course of action would be to consult with a local tax professional.
See https://taxexperts.naea.org/listing/service/estates-gifts-trusts
You can try TurboTax Business since that product is capable of preparing a return for an estate, Form 1041, but you would be best advised to seek professional guidance. Legally, your wife has a fiduciary duty to the beneficiaries and that typically requires employing professionals if the fiduciary does not have the requisite level of knowledge or experience to handle a matter.
