What 'position' means on title
Mortgages register against title in order, and that order — first, second, and so on — determines who gets paid first if the property is sold, including through a power of sale or foreclosure process. This is a matter of registration and priority, not something that gets negotiated after the fact once a file is in trouble.
Why second position carries more risk for the identical property
If a property sells for less than expected, or selling costs and the first mortgage's balance eat further into proceeds than planned, the second-position lender absorbs that shortfall before losing a single dollar reaches the first-position lender's own balance. Same property, same borrower — meaningfully different risk, purely because of where a lender sits in line.
Combined loan-to-value is the real number
A second-position lender isn't just underwriting their own advance against the property's value — they're underwriting the first mortgage's current balance plus their own advance together. A small second mortgage sitting behind a large first can still add up to a combined LTV that's genuinely aggressive, even though the second mortgage's dollar amount looks modest on its own.
Why second mortgages still get funded
A borrower who wants to keep a low-rate first mortgage in place — avoiding a penalty to break and replace it, a topic covered in Penalties, Prepayment & Porting — and simply needs additional funds for a specific purpose is a legitimate second-mortgage candidate. A second mortgage can be the more efficient tool than replacing the whole first mortgage, provided the combined LTV still leaves a real equity cushion.
What changes in how you underwrite each
A first-position file is underwritten against the property's value and marketability on its own. A second-position file must always be underwritten against the combined balance, which means confirming the first mortgage's actual current balance and standing — not just its original amount — before pricing the second.
