The brief answer is "No" but realtors may be reluctant to show your home to prospective buyers they have on their own books if your home does not have a lockbox.

Remember, realtors tend to be on a short schedule so they don’t have very much time on their hands (another reason why you should seriously consider the FSBO Flat Fee MLS Listing route to begin with) - having a lockbox makes your home accessible and convenient for the realtor.

IHS Realty strongly recommends that you use a lockbox to make showing your home simple and easy for everyone involved and increase the home viewings.

See Also