Chapter 17
Principles of the Laws Relating to the Transfer of Objects from One Place to Another
LAWS OF EIRUV CHATZEIROTH AND SHITUFEI MEVO’OTH (TRANSFERS INVOLVING PROPERTY OWNED IN COMMON)
12.a. The general rule is that one may transfer an article without restriction of distance within a reshuth ha- yachid.
12.b. Nonetheless, where the reshuth ha-yachid is owned and used in common by the different occupants of a number of houses or apartments, this is permitted only if the article was in that commonly-owned reshuth ha-yachid at the commencement of Shabbath.
12.c. Examples of such a reshuth ha-yachid are
1) the common staircase of an apartment building and
2) a commonly owned courtyard which is walled in on all sides.
12.d. 1) Two adjacent reshuyoth ha-yachid of this kind are, for the purpose of the rule stated in this paragraph, regarded as one, even if there is a wall between them.
2) An example of this situation occurs in the case of two adjacent, walled courtyards, each serving a separate apartment building.

