They ended up asking for an extension on rent for one week, I never got another penny from them and they flushed t-shirts down the toilet causing a big repair bill.

Anyone hear of InvestiGroup Inc. out of Hillside, NJ and Flushing, NY?

They Flush Baby Wipes Down The Drain Causing Plumbing Expenses..

As suggested, I'll flush out the numbers for doing both.

. - I.e. a 2-family in parts of Northern Queens (E.Elmhurst, Flushing, Jackson Heights) can go for $1.2M and the total rental income for both units would be $5,000/month while a 2-family in parts of Southern Queens (Jamaica, Woohaven, Ozone Pk) selling for $700K can rent for $4,000/month.That being said, every deal is different, every investor's situation and goals are different.It would take some more digging to really figure out the best route for you to take.Best of luck to you moving forward!

All the hard work and sacrifice to buy a duplex or what not just flushed down the drain for "entitlement"

Then we tried to flush it, and it ran dry.  

It's like poker, the idea is to make the right decisions at the time... if you have 2 pair and fold to a big bet on the turn to a guy with straight or flush.

I don't trust tenants, especially in that area, to not flush unwanted items down the toilets. 

usually waterjet would work to flush the root, there's other strategy as well.or .... you could repair the pipe as last option