Normally before the fines start accumulating, you should have been given at least two notices prior.

You can also buy a physical mortgage calculator, or use a financial calculator.In addition to monthly PITI you will need to know (or estimate) what portion is tax & insurance, to get to just P&I.Then you'll need to know (or assume) a term (length of loan) and interest rate - that will get you from P&I to loan amount.  

For example lets say the property I bought went to the auction on September and I bought it 3 months later on December, would I have the pay the taxes that accumulated over those 3 months while it was on the strike off list plus the minimum bid? 

I'm willing to work in any area because I want to learn every area: marketing for sellers, talking with sellers (have done some on my own), evaluate property (I have a Realtor to help me with that), working on the actual rehab (want to learn materials, costs, how to hire the right labor, how to know what a property needs and be able to correctly estimate it on the spot, etc.), learn how to negotiate, deal with, and talk to money people, municipalities, attorneys (I have a small relationship with a closing attorney in Greensboro) and other professionals in the business.

I know the house is brick, 750 sq ft, 2 or 3 bed/1 bath, was built in 1957, and has an estimated market value between 75-85k when fixed up, of course.

Open up a spreadsheet and start breaking down the costs and massaging the numbers with your estimates/budgets and note your assumptions until your as low as you can go.  

Olivia's estimate of the rent ($1400-$1600 is about right for the dwelling unit.  

How much would you estimate the cost of an attorney to verify my "Purchase and Sales agreement" and "Assignment Contracts" ?

Does anyone know of a site which lists a properties Sale Price vs an estimated achievable Monthly Rental income?  

Buy and hold is the route to accumulate wealth, not a get rich quick approach.