Harsch Investment Properties and the Portland Development Commission hope to reach an agreement this summer over Harsch's acquisition and development of the property.
Rowell Brokaw Architects seeks to transform a parking lot into a six-story building.
Four million dollars is needed to fund the design phase of the public vantage point at the falls.
Portland's McMenamins Inc. hopes to raise $8 million in equity to fund its latest project.
Orchard's Supply paid $7.5 million for the bowling alley.