The borrower is responsible to pay the scribe: Bava Metzia 16b
Recycling a bill used for an earlier loan: Bava Metzia 17a
Writing the Bill if the Lender isn't present, but the borrower is: Bava Metzia 12b-13a
Writing a Bill giving an object for payment to the lender, if the lender isn't there: Bava Metzia 13a
Witnessing
Lending money without witnesses causes borrowers to stumble: Bava Metzia 75b
Lending money without witnesses brings a curse upon one's self: Bava Metzia 75b
One who lends money without witnesses will complain in court, but they won't be able to help him: Bava Metzia 75b
Designating money for a loan before 3 parties: Gittin 13b-14a
The designation of money for a loan works because the witnesses acquire the collateral item for the lender when they sign, at the time when the Lender gets the document: Bava Metzia 13a
Bill Text
Where a condition allowing collection from property bound to another is omitted: Bava Metzia 14a, 15b
Determining the date when the debt comes due, if no date had been specified: Makkot 3b