This is clearly a shakedown, and while I'm not a lawyer and wouldn't know what law it violates, it certainly must violate one or more laws to purposefully conceal what the correct address is in an attempt to have the LL violate housing laws, and thus profit from it.I would request a freedom of information act request, and ask for all documents related to the previous 80 cases, as there are bound to be common themes, such as "attorney claiming to have sent a letter", but all 80 landlords mysteriously never got a letter. 

Common meter for water.

Like Michael said, I would use a cleaner once a month to clean or biweekly, restock the common area items (like TP, dish soap, etc), and sign up for routine lawn and snow services.

One of the common things I see with newer investors (I was guilty of this as well) is the "shiny object" syndrome. 

Absolutely, unexpected repair issues are quite common during a flip, and having a solid strategy to handle them is crucial.

What are common practices to remove them?

Here are some common structures and terms that have worked well for both private lenders and borrowers in real estate, particularly for those focusing on single-family homes (SFH) and multifamily (MF) properties like you're considering in Philly’s B Class areas.1.

In fact I think it is more common that developers will increase the % of affordable housing allowing them to circumvent the local planning and zoning commission in their approval process.  

Hello all,I do a rent by room strategy outside of Denver proper, and in the past have been burned a common denominator of two tenant that I allowed co-signers were not a good fit.

While not as common, these deals are possible in unique situations, especially with motivated sellers.In this high-interest, low-inventory market, it's all about getting creative while managing your risk and time commitment.