Is that usually the multiplier used for this market?

Money Mustache, the modern godfather of the financial independence movement, has this very simple calculation that was quite helpful for me in understanding the real costs of property management: take any fixed monthly expense you have and multiply it by 173.

I imagine this issue arose when you went from 1st of the month payment, to 15th. what you need to do is track down all your payments and track your timeline of living there. calculate how many months and how many weeks you were there, and multiply that by your rent payment. if that is not equal to the total amount of money given to them, then you owe them money. as a side note, if you moved from 1st to 15th due date, there has to be a check where you gave them half a month rent, or one and a half month rent. if you only have checks with the total rent due, then I am 99% sure you missed something.

@Adam Philpot, interesting that you estimate the price by a multiplier. 

If you think its expensive to have a wife, multiply that by 10 and thats what it costs to be free of one (i.e. divorce costs). :-)Humor aside.

Figure if you increase the rent by $50 to $100, then multiply that by 12. 

Some have capacities but weed out 30/60/90 clients and accept 15-30 instead, longer term means we need more margin, the more turn overs we can multiply the more income we get, we all have the same goal, the more we could rinse and repeat, the more we earn, it doesn't really matter what role you will be playing (lender, flipper, contractor), the pattern is the same. 

For example, if you got a HELOC at 75% LTV they calculate it by multiplying your 275k by 75% to get about 206k, then they subtract your remaining principle of 161, which would get you a HELOC value of about 45k.Good luck!!

People are still buying, but now at GRM (gross rent multiplier) of 11-12 commonly.

@Sam Gill You will need your accountant to agree with the applicability of the exception in your case but if you meet the criteria and have lived in it for less than two years you would take the $250k (500K if married) and divide that by 24 and then multiply by the number of months you lived in it.