I think if the area gets fully developed, I think rents will go down to probably $1400 total each month which would leave me with $300 final monthly cash flow and 10.57% cash on cash return.

Having none of these three is crippling as it leaves you with no leverage and no reason for someone to take a chance on.

Best is to research an area before investing in it otherwise you are putting yourself at high risk and you don't want to make mistakes at the start of your investing journey that will leave you with a bad taste of real estate investing. 

There are so many articles mentioning that the jobs are leaving the valley to the centre of the country.

(I don't know if this is the right place for the thread so I will leave it to the admins to decide.)So my question goes out to everyone that is working with/looking to work with/have worked with a Realtor.

Those who can leave will seek more affordable alternatives.

Tenant number two is threatening to leave if I don't tell the other tenant to get rid of the dogs.

That would leave 67.5k-49k = $18.5k.

My opinion is unless you desire to speculate on the Jersey City Housing market, and find that the ~400 loss per month is worth it to have skin in the game, then I would sell.Based on the wording of your post is sounds like you prefer stable cash-flow properties to speculating on the market, but both are fair strategies when properly applied

Some say it's ok to post them Friday night through Sunday night, while others say it's fine to just leave them up.