Lender · Los Angeles CA · Member since 2026 · 46 posts · 8 votes
Theres this investor in Sacramento that owns a duplex with a rate he locked years ago, and a great deal lands in his lap that needs about $60K fast!
His first instinct is to do a Cash out refi which would mean swapping that rate for today’s rate on the whole balance.
He was ready to burn the bridge on a loan most of us would kill for.
What he never looked at was leaving the 1rst mortgage alone and putting a 2nd lien or line of credit behind it, sized off the rental income. Some lenders now qualify those on rent instead of tax returns.
The learned lesson:
Before you refi a cheap first loan, run the blended cost of keeping it plus a second against redoing the whole balance.
Equity stuck in a low rate loan is still usable. You just need the right tool for it.
Second lien options, terms, and prepay rules vary by lender, so price both paths side by side.
@Irv Arreola Good example of why blended rate matters. Say you owe $200K at 3% and need $60K. A cash-out to $260K at 7% puts the whole balance at 7%, roughly $1,730/mo P&I. Keeping the first and adding a $60K line at 9% interest-only is about $843 plus $450, so around $1,293/mo. The blended rate is about 4.4%.
The catch is the second is usually variable and shorter term, so I'd only do it if the new deal can pay it down within a few years. Still, on those numbers it's $5K+ a year you'd be giving away to "simplify."
Irv, great point, and I agree that too many investors immediately think cash-out refinance when they need access to equity.
Personally, I wouldn't give up a great rate without exploring other options first.
A second lien or equity line could make a lot more sense, especially when the existing mortgage has a rate significantly below today's market. Why refinance the entire balance at a higher rate when you may only need $60K?
But I'd take it one step further. What is the investor trying to accomplish with that $60K, and how does the financing affect both properties?
I'd want to compare the combined monthly payments, closing costs, available cash flow, and repayment strategy. A second lien might preserve that great first mortgage, but if the payment structure creates a cash-flow problem, we haven't necessarily improved the investor's position.
Sometimes keeping the first mortgage makes the most sense. Other times, a cash-out refinance may provide a better overall structure.
To me, it's not just about protecting the rate. It's about protecting the investor's cash flow while helping them take advantage of the next opportunity.
@Irv Arreola Good example of why blended rate matters. Say you owe $200K at 3% and need $60K. A cash-out to $260K at 7% puts the whole balance at 7%, roughly $1,730/mo P&I. Keeping the first and adding a $60K line at 9% interest-only is about $843 plus $450, so around $1,293/mo. The blended rate is about 4.4%.
The catch is the second is usually variable and shorter term, so I'd only do it if the new deal can pay it down within a few years. Still, on those numbers it's $5K+ a year you'd be giving away to "simplify."
Great point, and there's a third path a lot of investors miss: leave the duplex alone completely.
If the $60K is for a new deal, finance the new deal on its own. Buy it with hard money (most programs fund a big chunk of purchase and rehab), then refinance it into a DSCR loan once it's done. With a no-seasoning DSCR lender you can cash out on the new appraised value right away instead of waiting 6-12 months. The low-rate first on the duplex never gets touched, and there's no second lien stacked on it.
The blended-cost math in your post is the right way to compare a second vs a full refi. I'd just add this to the comparison before anyone gives up a rate like that.
Disclosure: I'm a DSCR/hard money broker (DSCR Kings, NMLS #2016766).