The following is an index to property transfer deeds recorded at the Suffolk County Deed Registry from the time the predecessor buildings were purchased by Jacob Marks until December 31, 2010. Mortgages, trust agreements, and other similar recorded documents are not included. This index is intended as a guide only; actual deeds should be reviewed for details.
For transactions related to the predecessor buildings, see separate indices for 12 Commonwealth (Demolished) and 14 Commonwealth (Demolished).
| Transfers of Land and Buildings | ||||
| Date of Deed | Grantor | Grantee | Book | Page |
| 10Mar1989 | Estelle Gorin, Rosalind E. Gorin, Marjorie L. Spitz, and Walter J. Salmon, trustees, Harry N. Gorin Declaration of Trust; Irving J. Helman, trustee of trusts for the benefit of Earle Leeder, Celia Leeder, Gayle Leeder, Howard Leeder, Laurel E. Friedman, Hugh Friedman, and Gertrude Friedman under the will of Frank Leeder; Earle Leeder, trustee of trusts for the benefit of Earle Leeder, Celia Leeder, Gayle Leeder, Howard Leeder, and David Chase under said will; Judith Leeder, trustee of trusts for the benefit of Earle Leeder, Celia Leeder, Gayle Leeder, and Howard Leeder under said will; Laurel E. Friedman, trustee of trusts for the benefit of Laurel E. Friedman, Hugh Friedman, Gertrude Friedman, and David Chase under said will; Orrie Friedman, trustee of trusts for the benefit of Laurel E. Friedman, Hugh Friedman, and Gertrude Friedman under said will; and David Chase | Rosalind E. Gorin, Elliot M. Surkin, Earle Leeder, and Laurel E. Friedman, trustees, 12 Commonwealth Avenue Nominee Trust | 15430 | 153 |
| 24Aug1966 | Adelaide O. Leeder (formerly Adelaide O. Friedman), wife of Frank Leeder (one-sixth undivided interest) | Harry N. Gorin | 8166 | 6 |
| 01Jul1965 | Adelaide O. Leeder (formerly Adelaide O. Friedman), wife of Frank Leeder (one-sixth undivided interest to each) | Harry N. Leeder and Frank Leeder | 8104 | 104 |
| 24Jun1957 | Laurel E. Chase (one-half undivided interest, one-fourth to each) | Harry N. Gorin and Frank Leeder | 7245 | 405 |
| 24Jun1957 | Celia Leeder (one-half undivided interes) | Laurel E. Chase | 7245 | 404 |
| 01Nov1943 | Abraham M. Sonnabend and Leopold M. Sonnabend, trustees, A. M. Sonnabend Properties (4Apr1936) | Celia Leeder and Adelaide O. Friedman | 6066 | 157 |
| 05Aug1943 | Max Sandler | Abraham M. Sonnabend and Leopold M. Sonnabend, trustees, A. M. Sonnabend Properties (4Apr1936) | 6051 | 109 |
| 05Aug1943 | Standard Commonwealth Corporation | Max Sandler | 6051 | 106 |
| 16Feb1937 | William J. Stober | Standard Commonwealth Corporation | 5649 | 317 |
| 13Apr1932 | Henry B. Hosmer (mortgage foreclosure) | William J. Stober | 5321 | 22 |
| 01Dec1925 | Elise W. Pollard, and Edward W. Hutchins, surviving trustees under the will of Alonzo W. Pollard (14 Commonwealth) | Jacob Marks | 4745 | 587 |
| 21Jan1925 | Alice R. Allen, individually, and Alice R. Allen, Eleanor W. Allen, and Thomas Allen, Jr., executors under the will of Thomas Allen (12 Commonwealth) | Jacob Marks | 4667 | 324 |
| Party Wall Agreements | ||||
| Date | Party One | Party Two | Book | Page |
| 01Nov1978 | Gerald W. Blakeley and John Hines, trustees, Carlton House Trust (2-10 Commonwealth) | Estelle Gorin, Rosalind E. Gorin, Walter J. Salmon, and Marjorie L. Spitz, trustees,Harry N. Gorin Trust, and Earle Leeder, Laurel E. Friedman, and Max J. Klainer, trustees under the will of Frank Leeder (12 Commonwealth) | 9113 | 383 |