Piper Phillips thought she won the treasure hunt for a coveted one-bedroom apartment in Manhattan. Then she was hit with jaw-dropping additional costs totaling more than $10,000 — which would have brought her initial payout, including security and first month’s rent, to a whopping $21,507.50. The Midtown condo asked Phillips to cough up thousands in fees — not including the monthly rent — such as a $550 application fee, $1,500 administration fee, $1,500 “move-in” fee and a one-month broker’s commission. The Chicago native couldn’t believe the “ridiculous” hidden costs associated with the already pricey listing, which would have run her...