RVMs are good for drip prospecting. This means you have to be in front of the seller when they are ready to sell. Sending one big drop is wasting your money. It would be like sending 1 batch of direct mail and expecting results. You need to budget and set up something for 6 months or a year to see repeatable results.
The biggest problem with RVM is 40% of properties have mobile numbers. That means on a list of 100k properties you are only contacting 40,000. Of the 40,000 mobile numbers only 60% of those will be active and have voicemail set up.
Why does that matter? RVMs will reach 24% of your list.
SMS will reach 40%
Cold Calling will reach landlines and mobiles...so close to 85%
Direct Mail will reach almost all. (that have correct mailing addresses)
If you are in a tough market start by sending direct mail to properties that do not have phones. They are contacted by the least amount of investors and really only make up 15% of your total marketing data. Mail those for 6 months. Figure out how to automate the RVM to cover the 40%. Use your CRM to track KPI's.
If you are have been in the game a while stack all your data. That is combining all your old list into one big data set. Data Hygiene is a must. Remove properties that sold. Split out by phone type and look at what you have.