Depending upon the county & their ability to display legal documents online, you may be able to view the current owner's mailing address. For example, a property is assessed in OKC, but all assessment information is mailed to Florida. Oklahoma & Cleveland Counties will display this information. Other counties require a subscription to view their information. Just mail a letter to the last known address, stating your intentions. There is a way to request notification of an address change, from the Post Office, if any.
Again, if you physically go to the county courthouse & request all docs pertaining to a property, & are willing to pay the fees, if requested, you can find most anything you need. These are public records and anyone may view them. Even if a person has 'passed', you should be able to have access to court documents, if title was passed through probate, trust, estate, or will. If this all occurred recently, it may take up to 6 months for the information to be filed. Hope it helps, but it looks like you may already know this.... more
You can ask but my guess is they will say no. Most sellers want and need to sell to be able to move on or buy something else and they would have to own the property outright (have no mortgage) to be able to offer you that option and most don't.... more