Multifamily buildings make up the biggest share of potentially distressed properties.
House hunters are getting hit with a double-whammy: high prices and high mortgage rates.
Prices in 20 cities increased 7.4% from a year ago.
The average for a 30-year, fixed loan was 6.79%, down from 6.87% last week.
The decades-old system for how US agents are compensated has long been controversial.
New listings have been rising, which could motivate more buyers to jump into the market, Redfin says.
The mortgage "lock-in effect" may be loosening its grip as more owners list their properties.
Rent stabilization provides a foothold for the working class and costs landlords millions.
The average for a 30-year, fixed loan was 6.69%.
Mortgage rates had declined for more than two months, bringing slight relief to buyers.