It didn't leave much room for error, but given the condition of the house I wasn't too worried about getting upside down in it at $90k. walk away, to tight, I said my peace, my conscious is clear LOL, 

Building off of what @Daniel Duku the main thing you would want to check for which you can via atlas is if the land was used previously for an auto shop, laundry mat, or something where you would need to get an environmental report.

Quote from @Evan Polaski: @Jack Wang, I can also say I often find people make these out to be bigger issues in their minds than in reality.I wouldn't dismiss Jack's list so easily, especially the environmental issues such as lead paint & asbestos. 

With a savvy realtor and attorney, you can put forth a competitive offer that still protects you by waving the contingency with limited exceptions to mechanical, structural, environmental, and health and safety issues.

For property managers and landlords in Orlando and its surrounding areas, the message is clear: a focus on landscaping can yield significant returns, both in terms of property value and in attracting and retaining high-quality tenants.For rental complexes in Orlando, adopting sustainable landscaping practices can significantly reduce maintenance costs while attracting environmentally conscious tenants.

Or did mom sign at all since the medical records show she was in and out of consciousness at the time.These are all examples of things that lead to title disputes that just identifying the interest may not resolve. 

Gordon,You need to find out if there are any Environmental issues (either actual or potential). 

The pull back in these markets is due to a confluence of many factors, but it started with these environmental factors:Low interest rates and easy financing for new projects.Structurally high rent growth on existing inventory.High wage growth and high job growth.Very low vacancy.These factors led to floods of institutional capital coming to these markets to snap up existing multifamily inventory and build new supply to meet demand.For these markets, the last 5 years have been a seemingly never ending party!

Maybe check with your state’s fish and game department and your state environmental protection department to see who they work with or have heard of?

can you see where Columbus is heading...my primary doubled in value in 3-years...it will double again in the next 5...same story with my investment properties...you won't be able to buy a home in Columbus for under $600k in 15-years...every structure in this city is valued at 40-50% of value...coastal Cali is beautiful, but the combination of the environmental factors and natural disasters and decreasing rate of affordability mean you're about capped...so, you become a city of working class poor that sell their soul to the devil to afford rent in shared apartment and a bunch of affluent self-centered a$$holes in McMansions...sounds awesome.