I would advise finding an investor friendly realtor when you choose a market.

Since New Jersey is very tenant friendly I wanted to know if anyone has had a successful experience with actually getting your tenant out within a few months?

I imagine that if ALL the LP"s protested with Form 8082, the IRS might have taken note.I need to write some posts about the Tricks and Traps that some syndicators [not you, of course] use to the detriment of the LP's.But the Form 8082 is your best friend.  

In addition, a DIL does not automatically satisfy the underlying mortgage/DOT so if you accept a deed from the DIL grantee you may find a title insurer will require a release or sat of it before insuring.We have often used a “friendly” foreclosure instead of deed in lieu when we needed to “wipe out” liens junior to ours before taking property title.   

(Especially a 2-4 unit.)Do they have friends/relatives/co-workers that would rent rooms from them if they bought a property to show more income?

You rarely will get both (at least not right now in this current market).If you want to explore different opportunities within various areas of the Valley, get a seasoned investor-friendly Realtor who is competent. 

@Greg ReeseMost small investors will benefit by having the LLC created in the state where the property is located at.Creating an LLC in a state like Nevada, Delaware, Wyoming may be better for the big players if items such as charging orders, business friendly case law, anonymity are important to you.However, be mindful that setting up LLC's in those states will add to your costs as you may have increased annual fees for annual LLC fees + registered agent fees.

I’m searching for an investor-friendly carpenter and plumber.

Most of my landlords either don't accept pets at all or are super pet-friendly so pet rent has never been something we have charged.

I don't know the Baltimore market but have a friend who is a very savvy investor there and maybe he would do some coaching to help you understand which way is up.