Once you've identified your target property, check out Zillow for transactions of the same square footage in the last 12 months to get a ballpark.

Does anyone have any experience using data to identify deal opportunities?

@Daniel DietzWhile the cases cited are analyzing a different context (estate and gift taxes vs in-plan Roth conversions), in 2004 the IRS identified "Roth IRA stuffing" as an abusive tax avoidance transaction which has parallels to this concept in that the assets are being shifted to a Roth account below fair market value. 

This will allow you to identify your target audience and you must define what your target audience is in that particular niche.

I also have a handful of ‘opportunities’ where I understand the owners are terminally ill.I have no problem identifying the owners, their heirs, or what to offer as possible benefits of a sale.

Being new to REI, when working on developing connections and building relationships, how do you identify what groups and REI meetings are beneficial for you for you to attend to network?

If an RE investor did purchase such a property, they would either have a value add identified or they would be relying on appreciation for their return. 

@Theresa Harris thank you I think my next best course of action will be to hire a plumber to inspect all my pipes and identify exactly where the leak is coming from

You spell out my concerns well.Should I go this route, I will really need to hone in on the inspection process to identify existing issues.

I am trying to identify what should be considered good debt versus bad debt.