SURFSIDE, Fla. — Ines Mason bought the 14th-floor condo, perched on an island in Biscayne Bay, five years ago as a getaway, lured by the captivating view of the water. “In the morning, the sun rises, you can see that,” she said. “It’s amazing.”

But after seeing another high rise similar to her own collapse nearly two weeks ago in the nearby city of Surfside, suddenly her Florida escape turned into a source of anxiety. She became concerned about the structural integrity of her building, which is about 30 years old. She also worried about the financial return on her investment; her family had recently been contemplating putting the condo on the market and buying a townhouse.

“Should we sell it?” said Ms. Mason, a project manager who lives in Northern Virginia and travels to South Florida several times a year. “Should we not sell it? What should we do? We’re kind of just holding on tight and waiting to see.”