I don't know whether it was RealPage being used, but when I was leaving my apartment outside of D.C., I wanted to extend my lease by 3 months, into December. A very normal occurrence.
I went to the leasing office and asked to extend. We sat down and they typed some info into the computer. They said I could get the lease extension for 50% more than my current rate per month.
This seemed ludicrous so I asked why it was so expensive. They calmly explained about the new software they were using which set the rates for all new leases, which they were not authorized to override. They said the increased cost was due to the very large new building which went up a couple blocks away. Not owned by the same company. The building had been completed around December the year before. Many tenants were expected to be leaving around that time when their 1-year lease was up.
I couldn't believe this could be legal and asked the agent how this was legal to collude with another building. He said it sure seemed odd but all of the buildings in this city had just started using this software. This was just some guy working in a leasing office but he claimed it was because the boom in high-rise apartments in the city had created too much competition and the owners had all agreed to use this software to fix that.
Eventually, after some back-and-forth, I learned that changing my lease end date by a couple days reduced the rent increase from 50% to 5%. So I ended up with a 3 month and 6 day extension.