At least for these three apartment complexes, the owner is collecting three times the amount in rent vs. expenses -
https://commercialobserver.com/2019/02/ccre-hampshire-dc/ 'Between October 2017 and October 2018, the three buildings earned a combined $18.1 million, against costs of $6.1 million, according to Fitch.'
This is likely typical for many rental apartment communities around here. Demand is driving up the prices, both rental and for sale including the land, having been here since grade school days. And these all were miles outside the Beltway.
mid 1970's - modest 2-bedroom apartment rent $250 monthly, brand new split level home $45,000.
late 1990's - similar apartment rent $950, brand new 3-bedroom single family home, under $200,000.
now - same apartment ballpark rent over $1750, house over $500,000.
Its crazy, similar to what happened to New York City decades ago. Not to say all immigration is bad, many come here through the proper process including refugees, and I have met some nice and wonderful people around the world serving and working in various jobs and professions locally, who learned English at least the younger and middle age generations. With Fairfax County, it started much with Asians and the Vietnamese War boat people in the 1960s and 1970s. In the last decade or two, the liberal leaning Democrats in Fairfax County seeking more power, money, and voters, opened the floodgates to illegals which neighboring Prince William ousted, with Cory Stewart one of those leading that effort, and of course, all of them too need roofs over their heads. A place grows too fast, resources including land get overwhelmed, and have problems including higher priced housing, overcrowded schools, traffic, etc. Centuries ago, in the books of Genesis, Exodus, and other books of the Old Testament (its a history book too whether you believe in the faith or not), the Egyptians kicked the multiplying Isrealites out overwhelming the land causing famine, etc., so here today, history is repeating itself, at least somewhat in the same way.
Over the years, have moved further out, not alone, Route 1, Annandale/Fairfax, Fair Oaks/Fair Lakes, next Chantilly. When personal circumstances line up, expecting the next move like a lot of older folks will be out of Northern Virginia to a more rural area. Know sidetracked here, but last place lived, not many spoke English, and not good in a 911 apartment building situation that happened.