The Ethics Board is scheduled to conduct an initial hearing on whether to proceed with an investigation at 5 p.m. Thursday in Room 103A of the City-County Building.

According to the complaint, Doherty and then-city assessor Mark Hanson had informed Soglin and Deputy Mayor Enis Ragland multiple times in 2016 and 2017 about inequitable valuation of commercial property and poor assessment practices. The mayor’s office provided some funding to the Assessor’s Office to try to correct the situation, the complaint says.

Hanson could not be reached for comment.

In April 2017, when new assessments were announced, the city imposed big increases in value for hotels and large apartment buildings, which the Assessor’s Office said had been far undervalued. The assessments involved tens of millions of dollars in property value and millions in property taxes, affecting the balance of tax burden between commercial and residential property owners.

The city’s major commercial property developers met with Soglin on May 8, 2017, and sought to get him to return to the earlier commercial property assessment practices that greatly benefited them, Doherty’s complaint says. “These same developers are reported to be major contributors to Mayor Soglin’s campaigns,” it says but does not elaborate.