1637 Nostrand Ave, Brooklyn (East Flatbush) — 6-family walk-up, built 1931. 5,400 SF, six 2BR/1BA units. Rent-stabilized. $111,516 gross annual rent. Underwritten NOI $63,176 (6.7% cap at asking price). $158,167 per door. All-cash / low-leverage hold play. Steady, predictable income — 10-year horizon.