The hardest part of this is probably making time to go to the attorney's office and sign documents. 4.

In that document it says that if they are are found with drugs they lose their security deposit.  

What questions should we ask and what documents should we review Does anyone have experience with tenant eviction in Newark (We want to price this in on the off-chance that this might occur). how should we think of related costs and time.

@Jeff Webber welcome, you being self-employed you need to have your financials in shape and documented, get with a bank or broker that can tell you what you need to have documented to set yourself up for success.

They haven't left, What documentation do I need to bring to court in order to evict these people? 

Again, that's what should happen, w/o having the benefit of having read the documentation.

I am in the process of getting all of the documentation together currently to get preapproved and am looking to pull the trigger on my first home this summer.

Granted one has a great credit history and a sum sufficient for a down payment. 

Or was the work done with permits and proper documentation?  

The area is more C+, bjut I'd never recommend buying a property with tenants in place unless there is (a) a strong and documented record of timely rental payment; (b) you have the opportunity to speak to the tenant about the condition of their unit and the property in general prior to the purchase; (c) you run a thorough background screening on the tenant to make sure they will pass your standards for a resident.Agents often seek to sell properties when they should strive to build relationships by offering good investments.