While daunting, your experiences engineering firm and attorney will be able to guide you through the project.  

What if the smell was coming from a broken sewer line that was back-gassing into the unit, as well as leaking all around the foundation and rotting wood beams.

Start with BiggerPockets Ultimate Beginners Guide (free).

I’d love to help guide you through this!

As for the initial post, I would ask a few questions to shed some guiding light.

BiggerPockets is a great place to find featured agents experienced with long-term rental investments—they can guide you to cash-flowing properties and connect you with resources like contractors and property managers.

I would encourage you to read this beginners guide from BiggerPockets, it's a good bit of information so pick and choose what you want to read or read it all.

Common tasks include guiding (for example, blind, severe physical disability), alerting (severe diabetes, seizures), retrieving/operating (pushing buttons, switches, etc).

The ultimate guide to building rapport and great relationships.

As you look deeper into Cleveland, check out The Ultimate Guide to Grading Cleveland Neighborhoods.