The city of Houston’s Housing and Community Development Department’s affordable housing program has suffered from lack of oversight and mismanagement for years, a recent Chronicle investigation found. The rules governing the long-standing program, which was meant to help low-income Houstonians become homeowners and improve neighborhoods, weren’t always followed and in many cases homes were sold to people who shouldn’t have qualified because they made too much money. Mike Morris, the Chronicle’s City Hall reporter, conducted the investigation and explains what went wrong and how the city intends to fix it.