It grabs all other properties sold within 6 months and are less then 0.5 miles from it, I call this my comparison property set.For each item in comparison property set I compute price/sqft and place these values into a list.I pick the median from this list and multiply this median price/sqft against the sqft of the property that I am trying to estimate.I yield a value H.

Best way I have heard it explained was that if you take purchase price of home, say $100,000 and multiply by 1%, which gets you $1000, you should be able to rent the property for this amount, or more, to be able to cover your cost and turn a profit.

So take one cost of purchasing a home and multiply that by 50.

That said would the multiplier still be 3x, 4x rent or 2x?

We want them to believe their probability of success multiplied by the extent of the recovery does not justify the expense of the lawsuit.

You then just multiply that time the factor that would get you to your actual loan amount.  

It throws out a negative number indicating the negative cashflow but you can multiply it by -1 to make it look decent.

Assuming a 10% interest rate (from your example), with interest only payments due monthly, you would multiply the outstanding balance of the loan x 10%, then divide the result by 365 (or in some cases 360) and then multiply by the number of days in the month.If you are responsible for drafting, hire an attorney. 

Multiply that many times over every month with all the homes on top of that and you might start to get the picture.

Determine your holding time in terms of rehab and sales time and multiply that ties your taxes, insurance, utilities, etc..