Restatement Second of Contracts § 251
When a Failure to Give Assurance May Be Treated as a Repudiation
- Where reasonable grounds arise to believe that the obligor will commit a breach by non-performance that would of itself give the obligee a claim for damages for total breach under [R2C § 243], the obligee may demand adequate assurance of due performance and may, if reasonable, suspend any performance for which he has not already received the agreed exchange until he receives such assurance.
- The obligee may treat as a repudiation the obligor's failure to provide within a reasonable time such assurance of due performance as is adequate in the circumstances of the particular case.
. . .
- Nature and time of assurance. Whether an assurance of due performance is "adequate" depends on what it is reasonable to require in a particular case taking account of the circumstances of that case. The relationship between the parties, any prior dealings that they have had, the reputation of the party whose performance has been called into question, the nature of the grounds for insecurity, and the time within which the assurance must be furnished are all relevant factors.
Copyright, The American Law Institute