Curious. Is an isis wallet account a good form of colllateral?
You will probably need to give some more info as to what that is.
What is an isis wallet account? URL?
Acceptable collateral is anything that holds value which can be given to the lender or loan escrow (preferrably digitally) without the lendee or anyone else being able to take it back, for example another cryptocurrency that you don't want to sell.
Additionally the value of the collateral should exceed the total value of the loan + interest by some margin.