First Ave, Smithtown
- First Ave Baratta, Laura
- First Ave Marra, Lawrence
- First Ave Vitkun, Kenneth
- First Ave Vitkun, Kenneth
- First Ave Bj & Td Enterprises Ltd
- First Ave Min, Jaeki
- 9 First Ave Onkaspol, Sowanee
- 16 First Ave Us Bank Trust National Assoc
- 18 First Ave Randazzo, John
- 22 First Ave Mc Donald, James
- 26 First Ave D'Antonio, Joseph
- 34 First Ave Grelinski, John
- 44 First Ave 40-44 1st Ave Llc
- 55 First Ave 55 First Ave Realty Llc
- 56 First Ave Abruzzo Irrevocable Trust, Linda
- 60 First Ave Montalvo, Barbara
- 64 First Ave Randazzo, Antonio/Maria
- 68 First Ave Ash, Benjamin/Ariel
- 72 First Ave Devlin, Peter/Barbara
- 80 First Ave Lindstadt, Michael
- 82 First Ave Silvestro, Colonna
- 86 First Ave Fagan, Gregory
- 88 First Ave Beckman, Joann
- 90 First Ave Cibelli, Mario
- 98 First Ave Moran, Robert
- 100 First Ave Fiorentino, Rosemary
- 101 First Ave Kozarowitzky, Adriana-Soler
- 102 First Ave Kovarik, Life Estate, Susan
- 103 First Ave Perecinsky, Petr
- 104 First Ave Malecki, Kenneth
- 105 First Ave Benson, Jason/Maureen
- 106 First Ave Cavalieri, Lauren
- 107 First Ave Reischel, Anna
- 108 First Ave Longo, Ronald P Jr
- 109 First Ave Oliver, Tony/Kristina
- 110 First Ave Demasi, Andrew
- 111 First Ave Stanco, Gene
- 112 First Ave Nuare, Nughal
- 113 First Ave Mcgovern, Dennis/Jennifer
- 114 First Ave Huggins Irrev Trust, Sondra
- 115 First Ave Kendirgi, Jeannette
- 116 First Ave Cavalluzzi, Nicholas R
- 118 First Ave Resnick, Brian
- 121 First Ave Pitta, Rosario
- 122 First Ave Costanzo, Steven
- 123 First Ave Waldun, Rose Ann
- 124 First Ave Borden, Lorraine
- 125 First Ave Pappas, Nicole
- 126 First Ave Enriguez, Kevin
- 127 First Ave Koerner, Ronald/Marilyn
- 128 First Ave Shortell, Thomas
- 129 First Ave Brooks, Sheldon
- 130 First Ave Cerrato, Michael
- 131 First Ave Kowalski, Kyle A
- 133 First Ave Schmidt, William
- 135 First Ave Santino, Salvatore
- 193 First Ave Matusik, Donald
- 229 First Ave Simpson, Ryan/Heather
- 233 First Ave Serignese, James F
- 237 First Ave Barry, Kevin
- 238 First Ave Bowe, John
- 241 First Ave Grajko, David
- 242 First Ave De Angelis, Arthur J
- 248 First Ave Busby, Kelly/Patricia
- 253 First Ave Smith (Fam Trst), Richard G Jr
- 255 First Ave Min, Jaeki
- 260 First Ave Pederson, Richard
- 261 First Ave Project Share Inc
- 277 First Ave Landrio, Elaine
- 281 First Ave Bertothy, Brian J
- 287 First Ave Gregory, Christian/Jennifer
- 291 First Ave Marra, Lawrence/Hope
- 293 First Ave Hosey, Matthew
- 294 First Ave Larkin, Peter
- 295 First Ave Kiley, Jean C
- 299 First Ave Correia, Daniel A
- 303 First Ave Palmieri, Mario/Kathleen
- 307 First Ave Baratta, Laura
- 317 First Ave 317 First Ave Llc
- 319 First Ave 319 First Ave, Llc
- 331 First Ave 331 First Avenue Llc
- 333 First Ave Vazac, Fred/Maureen
- 337 First Ave Abdul-Rassoul, Ali