I would also plan on getting a mold test done by an environmental company before you close everything up.

Some case managers with Section 8 will go to bat for you, so try to establish a good rapport with them and the other folks at your local Housing Authority.Lastly, learn about CPTED (crime prevention through environmental design) to make your property uninviting to criminals and safer for your tenants.

@Lacy Tilley agreed, you need an environmental company (who doesn’t do the remediation themselves) test for unsafe levels of mold.

Plus, I have a 40-hour W-2 job (environmental engineer) and a partner of an Amazon store. 

You would need to make sure in the lease they are liable for any environmental issues if they ever to decide to vacate the property or shut down the business.

During the civil rights movement they called it environmental racism, because poor people of color always get stuck living near pollution sources where nobody else wants to live. 

Our side of the street is still industrial though, and our neighbor, the gas company, has had ongoing environmental issues for decades.

Build socially, economically, and environmentally sustainable products.

@Stacy Davis I'll offer my .02 based on my experience of owning an environmental remediation company: 1) Mold is not the main concern.

We had to close down the recycling business because of settlements with various environmental agencies.