Question about forced appreciation and commercial property

[Chris Horlacher]

I am a second year law student. I am interested in becoming a real estate attorney and investor. I had a quick question about forced appreciation in commercial properties. I was curious how long a property must be operating at the new NOI before it could legitimately be reflected in the worth of the > property on the market. For example... if I were to increase the rent 1000 per year and decrease expenses 1000 per year... how many months or years would I be required to maintain this before being able to sell a property for an additional 20K in a 10% cap market? Obviously it depends on many things, but I am asking just generally; what would an average buyer look at in terms of length of time?