Take others advice who do not invest in NJ with a grain of salt when it comes to LL tenant laws.

No realtor worth their salt is going to make a bunch of terrible offers for you in the hopes of landing a deal.

I will say that I am still a newer landlord so I guess take my last sentence with a grain of salt.  

. :) This is just my opinion, and it's free so take it with a grain of salt. 

My opinion is you should take the things being told to you with a grain of salt because that person sounds like a real negative nancy.

I would love to avoid this person but it's my uncle, I took it with a grain of salt and didn't make a big deal out of it.

However in my market if I try to Airbnb the second half of a duplex I'll sink in 2 weeks with terrible reviews saying "there were other people living in this house don't stay here it's not private"  I've only gleaned vacation rental wisdom from clients second hand, so take this with a grain of salt, but what I've heard is that if you emphasize all the bad things right in the listing (next to the good things, of course), then you only get people who do not care about those bad things, and that often solves the problem.

I'm by no means seasoned at this, and I don't know much about your area, so take my opinion with a grain of salt.

But take my advice with a grain of salt; I've only been a Bigger Pockets member for a few weeks.  

sub2"  Take either with a grain of salt.