| Jan 1, 2001 | Dec 30, 2002 | — | 1201 Lex LLC | Bessemer Trust Co., Watzman, Emilie O. Individually, Elman, Elise As Executrix, Elman, Leonard S. Individually, Rokito, Jodi Reismanindividually, Ornstein, Athena Individually, Elman, Leonard S. Asexecutor, Ornstein, David L/W/T/, Elman, Richard M. Individually, Elman, Richard M. Asexecutrix, Ornstein, J. Alan, Elman, Alice As Executrix, Reisman, Richard Individually, Rokito, Jodi Reismanas Executor, Elman, Alice Individually, Ornstein, Albert Asexecutor, Reisman, Kenneth Asexecutor, Ornstein, Steven P.As Executor, Reisman, Richard Asexecutor, Ornstein, Albert Individually, Ornstein, Steven P.Indivdually, Reisman, Nancy Individually, Watzman, Emilie O. As Executrix, Reisman, Nancy As Executor, Reisman, Kenneth Individually | Deed | View ↗ |
| Dec 1, 1997 | May 21, 1998 | — | Ornstein, Steven, Elman, Alice, Alman, Elsie, Reisman, Julia, Watzman, Emilie, Elman Leonard S. | 81st Street Partnership, L.P. | Deed | View ↗ |
| Dec 8, 1993 | Feb 15, 1994 | — | Ornstein, Athena | Ornstein, Alec | Deed | View ↗ |
| Oct 29, 1993 | Nov 22, 1993 | — | Orstein, Pamela L. O. | Ornstein, J. Alan | Deed | View ↗ |
| Dec 3, 1992 | Dec 23, 1992 | — | Ornstein, David Decd, Chemical Bank Trtee, Ornstein,Dolph Brucefbo | Ornstein, Miriam | Deed | View ↗ |
| Dec 1, 1992 | Dec 23, 1992 | — | Ornstein, Miriam | Ornstein, David Decd, Chemical Bank Trtee | Deed | View ↗ |
| Nov 1, 1992 | Nov 10, 1992 | — | Chemical Banktrtee, Ornstein, Miriam Benf/, Ornstein, David Decd, Ornstein,Dolph B. Benf/ | Ornstein, David Lwt, Ornstein, Miriamextr, Ornstein, Yevrah Extr, Ornstein, Richard Gary | Deed | View ↗ |
| Jun 20, 1991 | Jul 22, 1991 | — | Ornstein, Steven, Ornstein, David Est/, Elman, Richard, Reisman, Julia, Elman, Elise | Udaskin, Philip, Udaskin, Charlotte Lwt | Deed | View ↗ |
| May 9, 1991 | Jun 12, 1991 | — | Reisman, Julia, Ornstein, Steven, 81st Partnership, Ornstein, David Est/, Elman, Elise, Elman, Richard | Udaskin, Philipexectr, Udaskin, Charlottelwt | Deed | View ↗ |
| May 8, 1990 | May 31, 1990 | — | Ornstein, J. Alan, Orenstein, Alec W., Watzman, Emille | Ornstein, Rose | Deed | View ↗ |
| Aug 8, 1989 | Dec 22, 1989 | — | Udaskin, Charlotteest/, Udaskin, Philip Ext/Est | Kreiss, Alice Lwt, Rosenthal, David | Deed | View ↗ |
| Apr 4, 1988 | Apr 28, 1988 | — | Ornstein, Ruth, Ornstein, Dolph, Ornstein, Miriam, Ornstein, Harvey, Ornstein, Linda, Ornstein, Richard, Ornstein, David | 81st Street & Ave Acorp | Deed | View ↗ |
| Apr 4, 1988 | Apr 28, 1988 | — | 81st St Partnership | Ornstein, Linda, Ornstein, David, Ornstein, Harvey, Ornstein, Miriam, Ornstein, Dolph, Ornstein, Ruth, Ornstein, Richard | Deed | View ↗ |
| Apr 10, 1984 | Apr 16, 1984 | — | Elman, Leonard S., Elman, Richard | Elman, Leonard S. Exec, Elman, Pearl U/L/W/T | Deed | View ↗ |
| Jul 1, 1982 | Jul 7, 1982 | — | Ornstein, Miriam J. | Ornstein, Rose | Deed | View ↗ |
| Jun 29, 1982 | Jul 7, 1982 | — | Ornstein, Miriam J. | 81 St. & Ave. A CORP. | Deed | View ↗ |
| May 24, 1982 | May 26, 1982 | — | Ornstein, Rose, 81 St. And Ave. A. CORP. | Aaron, Samuel | Deed | View ↗ |
| — | Oct 24, 1980 | — | Ornstein, Miriam J, Ornstein, David, Ornstein, Theodore | Lewis, Dorothy | Deed | View ↗ |
| — | Jan 15, 1976 | — | Ornstein, David, Kreiss, Alice, Ornstein, Theodore, Ornstein, Albert, Elman, Pearl | Golin, Elsie | Deed | View ↗ |
| — | Dec 12, 1975 | — | Ornstein, David, Ornstein, Albert, Ornstein, Miriam J, Lewis, Dorothy, Aaron, Samuel, Elman, Alice Pearl, Golin, Elsie, Ornstein, Theodore | Spare Realty CORP | Deed | View ↗ |
| — | Oct 17, 1975 | — | Spare Realty CORP | Golin, Elsie | Deed | View ↗ |
| — | Oct 9, 1975 | — | Spare Realty CORP | Ornstein, Miriam J, Elman, Pearl, Lewis, Dorothy, Kreiss, Alice, Aaron, Samuel, Ornstein, Albert, Ornstein, David, Ornstein, Theodore | Deed | View ↗ |
| — | Dec 11, 1970 | — | Ornstein, David, Ornstein, Theodore, Ornstein, Albert | 1584 CORP | Deed | View ↗ |