Rental income varies by location, property condition, and unit size, but most two family homes in Fairfield County generate between $3,000 and $6,000 per month in total rent across both units. A typical duplex might rent one unit for $2,200 and another for $1,800, giving you $4,000 monthly. That often covers your entire mortgage payment, property taxes, and insurance, especially if you’re living in one unit and renting the other. Properties near Metro-North stations in Stamford, Norwalk, or Fairfield command higher rents because commuters will pay more to be walking distance from the train. We pull current rental comps for every property you’re considering so you know exactly what the market supports before you make an offer.