Can a loan granted on a holiday be enforced through a court proceeding after the holiday?

Does a letter's shape becoming defective after writing (through a hole, tear, or smudge) invalidate STaM?

Laws of Mezuzah

When new residents join the courtyard after the eruv was made, does the person remaking the eruv need to notify them, and does it matter if the new resident's house opens to one or two courtyards?

Eruv Chatzeirot Contributions

When ten houses are arranged in a row (each inside the other) with all residents passing through to reach the outermost exit to the courtyard, how many need to contribute to the eruv?

Eruv Requirements for Courtyards

If two courtyards established an eruv through a shared doorway or window and it was blocked on Shabbat, may they still carry between the courtyards?

Eruv with Non-Jews in Courtyard

May the eruved resident (who dug the pit) pour wastewater onto her porch so it flows through the courtyard to the pit, given that the pit belongs to her partner and is distant from her?

Forgot Eruv — Bitul Reshut Rules

In three courtyards one inside the other, each with a single individual, and many have foot traffic through the outer — do the inner individuals restrict the outer courtyard?

When Eruv Members Violate Shabbat