Realtors need educating, so do the property owners
Educate the realtors that by having their properties cleaned to a standard, by a certified professional, will prolong the life of the carpet for the owners.
I have found that this method will work if you are persistent.
By restoring stuffed carpets at my price, I have overcome most of the objections.
Most carpet cleaning money is taken out of the previous tenants bond, not the realtors slush fund.
Once the realtor is convinced that you are actually saving them money, the rest is easy.
They recommend you, and also tell the tenant that if they get another cleaner and the job is not up to scratch, it will be cleaned again, and the money taken from their bond.
There are still exceptions to this, in as much as there are still those realtors that want a bite of your bill.
I tell them to stick it and get someone else.
Cheers,
Shorty.