Going off market there is a lot of offerings that are not better than the MLS listings, there is often risk items, and they virtually always require work. 

The biggest concern they are having is over dramatically increasing costs...not so much with rate, but with items like taxes and insurance.

You start with logic.I am very serious that all these so called marketing experts know very little of true marketing.Marketing has to do with the medium you are marketing on and the audience you are trying to reach.As long as you understand these to items you are fine.Just learn the basics and then make the rest up yourself.

What are some things I should be taking care of first and foremost or items I shouldn’t overlook?

If you see any drugs or other illegal items, snap photos for your records.

I come close to having resources to have 0% LTV if desired but due to non-recourse I would not need to cover due to item #2.  

If you haven't already, look into cost segregation, it's a great way to save a lot on taxes for items that wear out faster than 28 years.  

This is a rather narrow set of circumstances, but it is out there.For your situation, sounds like you would just be considering items 2 and 3 for tax purposes. 

If you purchase a property, many of the costs on the closing statement are added to your basis.There may be some items that are eligible for an immediate write off such as pro-rated taxes, interest, insurance and hoa dues.

There are currently 10 items, which I affectionately refer to as the "10 Deadly Sins" that if they are included in your Wisconsin residential rental agreement will render the agreement void and unenforceable.In my representation of landlords over the past 20 years, the two most frequent situations in which I have found an illegal provision in a rental agreement were because: (1) the landlord decided to draft his/her own rental agreement and didn't know that Wisconsin law prohibited him/her from including certain language, and (2) the landlord used a rental agreement that s/he found on the internet that was not drafted by a person knowledgeable about Wisconsin landlord-tenant law.Section 704.44 of the Wisconsin Statutes sets forth the prohibited provisions.You cannot include a provision in your Wisconsin residential rental agreement that:1.