Inflection point of IRR

[Alan M.]

I've run some numbers on properties with some basic assumptions (3.4% rent growth, 4.4% appreciation, 25% down) and I'm trying to find the "magic" inflection point for IRR (i.e. the point at which it basically peaks). Anyone have experience with what math lever most influence IRR? I realize it's property specific, but there have to be some rough rules of thumb in terms of what most influences IRR.