If you have 65k to invest, my question is...why on earth are you shopping for a duplex???
That 65k is a 10% downpayment on a small apartment building worth $650,000. Maybe a 12 or even 15 unit if you're lucky.
A small apartment will actually cash flow for you. You'll make a few thousand per month in liquid spendable cash after all debt service and expenses. Compare that to a duplex. A duplex will not do anything for you. All your buying is one thing "a headache"!!! You get perhaps $200 buck cash flow if you're lucky and little to no appreciation. And if a renter does a midnight move, then guess who's funding the mortgage out of their own pocket for that month? Good guess.
With even a small apartment building of this size here's what you'd be getting:
Approximately: $2000 liquid spendable cash
Mortgage paydown of about: $400 to start
@ 5% appreciation per year on a $650k apartment building you'd make: $2700 per month
Add all of that up and you're making: $5100 net per month. That's almost 100% ROI your very first year. You will not make that on a duplex, not even close. On a duplex you'll make $200 bucks a month if you're lucky. But factor in people doing midnight moves and you might end up with a negative cash flow. With even a 10 unit apartment if you get 1 midnight move, it's no big deal because that's only a 10% vacancy. You're cash flow at the end of the month would be slightly less, but you'd still have "positive cash flow". And apartments are super easy to re-rent. If you put an ad in the paper you're phone ends up ringing off the hook.
Anyway, if it were me I'd leverage that $65k.
It appears to me that so many people who are just starting out are a little confused about what exactly their buying. You're goal is to use your small deposit to be able to go to a bank and get the biggest loan you possibly can. You're using it as leverage. In some situations who's to say that $65k can't act as a 5% downpayment on a building. It's totally possible if you make enough offers.
This is how it would look on the offer with 10% down:
1st mortgage: $487,500
Seller Second mortgage (VTB): $97,500
Your balance: $65,000
You can offer that all day long as a solid offer, and you'd get lots of apartment owners willing to sell out on those terms. It happens all day long.
You might be even able to find a situation where you're downpayment acts as just 5% of the deal. That's what you want to find.
Good luck.