The guy who is 4 times more expensive may be that much because he works one job at a time with no back end and no help, so to make up for his lack of sales he has to make sure that every win is a hit out of the park.Meantime, the guy who is 4 times cheaper may have 60 guys working for him with 12 dedicated vans and a full time office staff and a metric ton of automation on his side.

Potential customers can search the local MLS using it and they can send them automated market reports. 

You should just sit tight and do nothing other than watch the stock price, which you can automate either through an employee or, if you are technically proficient, by having alerts sent to you.

It is a very robust online marketing tool that allows you to build and segregate list, provide automate email replies, sell products, etc.Unless you are planning on building a big database of potential customers that you want to communicate with routinely and convince them to buy something from you.... it is probably gross overkill for a real estate investor.There are other FREE programs such as Constant Contact which are better suited to a real estate investors needs.Best of luck!

They can put you on an automated email list with your criteria.

   :)As for collecting rent, we use an automated system to collect rent, which about 90% of our tenants use.  

These days, automated rental management software can handle a lot of the tasks a property manager performs.

He works with a ton of investors in the MKE area and understands real estate from investors' mindset.Also, one of the other big worries of new investors is maintenance and we can help automate that as well.Either way, the longer you wait to get started..........the longer it takes to put those worries behind you.

I haven't used this myself but another host had recommended I check out AirGMS https://www.airgms.com/ which has your multi-calendar support (think it uses iCal on the back end like @Michael Kugler said), plus automated messaging and supports multiple accounts among other things. 

When they call to inquire about a unit, I require they send email with specific information present to get an automated response about the property with a link to how and where to apply.