Real money in low C-class, if you're willing to put up with the headaches, is most definitely in Section 8 here.

Classification of gain as capital or ordinary is determined property-by-property, based on the statutory determination of whether the property is a capital asset or property held for sale to customers in the ordinary course of business.

However, it does depend on the classification and condition of the building and residents.

Here's the link.http://www.nononsenselandlord.com/2014/04/how-i-turned-a-class-d-apartment-classification-complex/

@Jeff Rabinowitz  exactly  not enough reserves when you have a vacant unit  and potentially C class if its C class  10k would be a better number.. maybe she can contribute right now for 2017 and beef that up....

I'll call tomorrow and see what classification of private drive it is.

In addition do not overlook the solicitation of the partial as weighing heavily on the classification of it being a security.  

Learn/study what to look for in a property (need to know some construction terms, types or description, functions), documents required, learn what to look for in a title, learn how to do the math, zoning classification, permitting process, seeking financing, property assessment,  Remember, you are in a tight bind, but you should seek help with a general contractor, CPA/Attorney, real estate broker and others when you have specific questions.

The property owner has a 2 to 2½ year redemption period in which to fully pay back the amount of their sold taxes, depending on property classification.

I'll have to look into the assessors classification and confirm with the city inspection department.