You need to talk to an attorney in your locale. Around here, it can be done via a quit claim deed, filing of a Journal Entry from a Divorce action,a death certificate if the property is titled in joint tenancy with right of survivorship, or via a quiet title action. Obviously the facts underlying make a difference. Also a word of caution, quit claim deeds can trigger gift tax consequences. Thus, get a competent attorney to lead you through the process.

Get a good real estate lawyer. Death certificate is all I know you need, laws vary.

in Texas, would be determined by (1) whether you acquired property during marriage, and as separate property or community property, (2) whether your spouse passed away with or without a will, and whether the will has been probated, (3) whether you had children together or if she had children from a prior marriage, and (4) whether her estate left unpaid debts.

In Texas, while not impossible to resolve without a lawyer, efforts to do so are so frequently incomplete or screwed up, and the process generally so simple, that one is foolish not to.

In your state ... who knows, but acting on the assumption that it's not held as joint tenants with right of survivorship (rare here), it is likely an heirship issue.