We use buildium for our property management software, this allows us to screen tenants and bill the screening back to them.

Would you expect vacancy, repairs, marketing and screening to find new tenants to cost to you more or less than that? 

Tenant screening and strong screening criteria are very important, NJ is a tough state to pick and choose your tenants so you need to be very clear as to what you require and it also has to fit the section you’re trying to rent in.

Learned a lot on how to screen tennant properly.

I might be recalling the 2bd/3bd rates incorrectly, but in my one bed it is $60 flat.

I have a single family home rental that I was recently contacted about by an agent with a couple that passed all of our screening checks and we decided to move forward.

Didn't see landlording as a business, rented to a "friend", no tenant screening, didn't keep a close eye on what was going on there, etc.

You just need to make sure to screen them properly and make sure they are clean, quiet, and respectful.

Real Estate usually beats the stock market once you factor in "leverage" which is exactly what you are doing by getting the property financed.That's a long-winded way of saying put as little down on the property as possible while still making sure it comfortably has positive cash-flow.Here are 2 scenarios assuming you can buy at $285K1. 20% down @ 4% interestDown payment = $57KNet Operating Income = $1620 per month (per the screen shot you posted)Debt Service = $1400 a month including taxes and insuranceCashflow = $220 per monthCash on Cash Return = 4.6%2. 10% down @ 4% interestDown payment = $28KNet Operating Income = $1620 per month (per the screen shot you posted)Debt Service = $1662 a month including taxes and insuranceCashflow = -$40 per monthCash on Cash Return = 0%After running these numbers the triplex doesn't really look like such a great investment to me.

Once you've purchased the duplex, screening tenants properly and never veering from your standards is the key to making it work.