About 1,300 Afghan refugees have settled in the Washington, DC, area since last fall, and thousands more are expected to arrive in the coming months. While many incoming refugees have family ties to the area, it’s also one of the most expensive housing markets in the country, and evacuees will receive limited federal assistance, making it more difficult to find cost effective housing. “We’re advising people that Northern Virginia may not be the best place because there is such a saturation [in the housing market] and there are high rental prices,” said Krish O’Mara Vignarajah, chief executive of Lutheran Immigration and Refugee Service. “But sometimes, people, that’s the only place they know. That’s where they will go.”