Montgomery County presents a carry-versus-exit underwriting tension: published rent supports an initial screen, while the listing market and migration warrant caution. Zillow’s county median home value was $349,718, up 2.89%, at its supplied county observation. FHFA’s annual repeat-transaction HPI rose 3.29%; it supports positive price direction, but is an index rather than a value and comes from a different method and period. Investigate deal-level demand rather than treating either measure as a sale-price forecast.
Median asking rent was $1,684 per month, up 4.17%, producing a stated 5.78% gross yield before operating costs. This is measured market rent; HUD’s two-bedroom FMR of $1,271 is a payment standard, not asking rent, and must not replace it in yield work. The 0.74% effective property-tax rate and $2,249 median annual tax are carrying-cost inputs against gross yield; parcel-specific tax bills, insurance, financing, maintenance, and vacancy are not published, so net yield and affordability cannot be underwritten.
Realtor.com’s supplied MLS listing-market evidence points to less seller control: active listings increased 29.97%, and 18.06% had price reductions. These are visible supply and seller-concession measures, not closed sales or proof of buyer demand. Tax-return migration shows a net loss of 385 households; incoming movers’ average income was $540 below that of outgoing movers. Investors accounted for 12.23% of 801 purchases, indicating participation but not price-setting power. QCEW’s annual county-workplace data record covered-job and wage gains; Trade, transportation, and utilities is the largest disclosed private supersector, but neither fact establishes resident demand or a forecast.
Inland flood is the dominant hazard, and the modeled annual building-value loss ratio is 0.06%. That county-level ratio cannot locate parcel exposure or price insurance. Next, obtain submarket closed-sale and rent comparables, lease-up and vacancy data, parcel tax bills, flood maps and insurance quotes, property condition, and financing terms; without them, net cash flow, resale liquidity, and asset-specific loss exposure cannot be concluded.