So my understanding is that if you first take your income and figure how much debt you can handle you can then plug that number into the second equation and figure out your credit limit. 

I can't with any amount of sincerity suggest that you even look at Real Estate investing until you handle your debt.

I am looking for an attorney who handles foreclosures in Pennsylvania - specifically Lehigh County or Allentown. 

Most lenders do not specialize in renovation and thus it is not handled as a specialty.  

He says he is a traveling business man and handles everything off site by phone and email.

I am not certain at this point as to handle it, but I am definitely headed in the right direction. 

He also office shares with 3-4 other attorneys so they should be able to give you a referral if he does not handle it.

Four units seems like a good cutoff as it is taxed residentially vs commercially and it might be the most I could handle as a newbie landlord.

I have been self managing them, but am ready to find a management company to handle all aspects of management and leasing.  

Wouldn't it be smarter if you spent less time sifting through all the garbage properties in your email because you have 3 solid ace superstar wholesalers from different companies who pump out 30 quality deals a month each and you know you can get your hands on as many as your bank account can handle?