First time investor is acceptable . 2-4 points sounds about right depending on the scenario 

Notes cover the entire risk spectrum and can be appropriate depending on the amount allocated and terms.

Not out of line depending on exactly what was needed and how extensive the cleaning, small repairs etc were 

Sorry to say, there is NO answer as it depends on so many factors. 

Real estate investors employ various exit strategies depending on their goals, market conditions, and investment properties.

Over the past 2-3 months, my buyer clients have been offering anywhere from 2k-10k on homes in the 300-500 range depending on how competitive the specific property is and how strong the other offer terms are.

In fact, the willingness of a bank to negotiate on the price of an REO property can vary significantly, depending heavily on factors such as how much was owed on the property at the time of foreclosure and the bank's current inventory of REO properties.When considering an REO property, especially one that requires significant work like adding a bathroom to make it comparable to current 3/2 homes in the market, it's crucial to do thorough due diligence.

For Crime Rates in the City Proper see here: https://crimegrade.org/safest-places-in-scranton-pa/ Just like any city, it varies heavily street to street, but is overall a solid place to invest.

Depending on your goals and the volume of deals you are seeing that you'd consider a "buy" , it might help you scale faster. 

Meaning, every year builds off of the previous year.A reasonable organic rent growth input can be from 2% to 4% every year, but this depends on your business plan and market.Sponsors can use organic rent growth to inflate investor returns in the underwriting model.