Can a spousal guarantee be limited to just part of the loan instead of the whole amount?

Yes, a spousal guarantee does not have to cover the full loan amount, and like a limited guarantee more generally, a spouse can negotiate a guarantee capped at a specific dollar figure or limited to a defined portion of the total facility rather than accepting exposure for the entire outstanding balance plus interest and costs.

A lender may resist this kind of limitation, particularly where the spousal guarantee was specifically sought to provide additional comfort beyond the primary borrower's own financial position, since capping it reduces exactly the protection the lender was looking for in requesting it in the first place. Whether a lender ultimately agrees depends on the overall strength of the deal and its own credit policies, but there is no rule preventing this from being raised and negotiated. As with any guarantee term, this should be worked out and clearly documented before signing, and a spouse considering this kind of guarantee should get independent legal advice given the real personal exposure involved, regardless of whether the lender specifically requires it.