How much is "enough" reserve for vacancies?

[Matt R.]

Hello all!

I have one rental so far, and each month, I set aside 1/12th of the gross rent for future vacancies.  Since my property has been rented for two years now, I have enough money in the vacancy fund to pay myself the full retail rent for two months.

It's not a problem for me to keep putting money in the vacancy fund at this rate, but I was just curious what other landlords do - how many months of vacancy reserve do you consider to be "enough"?

Thanks!