It's hard to get a dollar amount because there are so many variables, but I would say a general rule of thumb is 15-20% return on the investment is where you would want to be on most development deals.

Let's say, a half of it has been already paid.

Let’s say a realtor drove the seller to the closing just to bust you as a wholesaler.

And the reason I wanted to extend my knowledge is to provide a more simple avenue to understanding data and or what sort of data might suit say a real estate agent and or investor.

@Bob Stevens what class neighborhood would you say a 1.5/2% rent ratio is to be found?

This is a hypothetical question , say a person is having real hardship and can no longer make the mortgage payments on their home, is it legal and can someone offer to take over payments and put the home into the new owners name, is the bank still involved in this transaction , does the new owner have to still qualify for that loan?

If you are charging month to month 600 with utility and want to charge 650 with no utility that would be say a 100 a month swing for example to you.

I can't say as a landlord that is something I would ask for but I know as a guardian that is a legal relationship and papers are filed with the court.

Only if you are comparing this RE investment against, say, a stock investment that would not create any tax offsets.  

A few questions: My dad is really strict on this: Just say a tenant paid first and last, then that tenant came up to me on the 19th of the month and said he MIGHT be moving.