Sorry I don't have any insight into the NoVA Section 8 market but I know the approved rents in the District are extremely high but I do have a question that will hopefully help you out as well...Does the DC Housing Authority do a market analysis on comparable rentals in the area before they agree to pay the amount listed on the website or are the rent amounts listed on the DC Housing Authority what investors are typically getting? 

We don’t know any PMCs to recommend in the area mentioned, but since selecting the wrong PMC is usually more harmful than selecting a bad tenant, you might want to read our series about “How to Screen a PMC Better than a Tenant”:https://www.biggerpockets.com/member-blogs/3094/91877-how-to-screen-a-pmc-better-than-a-tenant-part-1-services-and-processesWe recommend you get management contracts from several PMCs and compare the services they cover and, more importantly, what they each DO NOT cover.

It can still be of value to run, but generally you need comparable sales.

They use this sales data to determine the tax assessed value of the homes and comparable homes.

Understand the fees involved and calculate the total cost for an entire year of management so you can compare the different managers.

As an agent, it will be harder for you to get a loan because you need to show you have two years of taxable income compared to a regular job.

Median Price: $525,000 +7.14% Yoy - 7ish % isn't unusual, I have multiple ~7% moves since 2016.Sales: 5,344, -10.06% - normal number for September, 2020 was unusually high due to delayed purchases from Covid thus the yoy lossYTD sales: 41,238, +8.36% - highest Sept read I have, houses are selling.Inventory: 5,875, +6.16% - still too low compared to pre-Covid, see stacked chart.New Listings: 6,366, -10.61% - still too low compared to pre-Covid, see stacked chart.YTD New listings: 51,949, -2.47% - prior to Covid we were running 60k+ houses.Months Supply: 1.2, -14.29% - persistently low indicating an unrelenting sellers market, see the Existing homes as a % of households chart, continues to shrink.Cumulative days on Market: 26, -44% - persistently low indicating an unrelenting sellers market

HOA fees are on the lower side compared to some but it covers everything except electricity bill.

Understand the cash-flow of working a 9-5 job, compared to working your own business.

@Erick Sembrano try the company floodsimple for coverage, they were very affordable compared to other insurers when we needed coverage on a 5 unit in a very similar situation.