This week readers visited Brick Underground to read about Manhattan co-op and condo sales. Sales activity in the first quarter was the second highest on record—and the median price jumped 10.7 percent to $1,190,000. With so such strong demand, inventory levels are low and sellers continue to call the shots in this market.

Also of interest: A look at how New York State is tackling its problem with zombie houses: Vacant and dilapidated properties that can attract crime and drag down nearby property values.

Here are this week's top five posts:

1) 'Flying off the shelf': Record-setting Manhattan co-op and condo sales shrink inventory

2) Zombie houses: Inside NY's effort to release derelict properties from legal limbo

3) One year later: Checking in with the NYC newcomers who had steep rent discounts

4) From Bensonhurst to Woodhaven: My old nabe will always be home, but I was uneasy if I was out late

5) Our landlord wants us to sign a three-year lease. Is this a good or bad idea?