The decline in sales represented what a spring housing market looks like when it is shut down to fight a global pandemic. There were 1,149 condo sales, down 47.7%, and 1,523 single family sales, down 31.6% from the year-ago quarter. Condo listings fell 11.1% to 7,046, year over year. Single family listings declined 27.6% to 2,653 as would-be sellers either pulled their listing…