So the way I understand it is that the total gross rent on the duplex would be considered income, but the banks usually only take into account 75% of that income to account for vacancy and the like. 

PM's cost 30% or more of your gross income, not net, but gross income.

Check ICSC ( International Council of Shopping Centers ) website and directory for a tenant rep leasing broker.You have to find a broker that really likes commercial leasing because not much money in it compared to transacting.I don't touch property management or leasing broker.200,000 gross income center to manage at 4% fee is 8,000 a year if principal broker keeping it all.Leasing a Starbucks tenant to a center maybe make 15,000 to 20,000 commission.Sell a retail center for 3 million maybe make close to 100,000 commissionThese are amounts for principal broker for their own company an they keep it all pretty much.

I stopped by to try to snake it, which she also tried and while it snaked out some grossness (as should be expected with a clogged drain), the water still drains very very slowly. 

While most folks chase gross profit, there are still many that value take home pay above all else.

You are looking at increasing your gross income by $1,200 per year so it will take you about 4.5 years to recoup that cost. 

. $700*3=$2100 Gross monthly rents.. $2100/$195000= 1.07%.

Gross rental income is $318,600 and then with 25% expense ratio and 5% vacancy puts you at a 5.7% cap.

I took the annual gross multiplied it by 12% to consider vacancy.

@Jason Nguyen Is 700 gross income or net income?