Use the search feature and you will find hundreds of posts on this subject.Do both...real estate and education. 

Its just a feature on a vacation rental. 

Should be around 50 bucks a month or so depending on the features you get. 

I see someone already mentioned using Airdna.co rentalizer feature.

The only warning I would share is recognizing when not to use the auto search feature and what search adjustments to make. 

After all, you get better at what you focus on.That being said there's an interesting video of a guy featured on Millennial Money that is both a realtor and appraiser.

Any particular features you're looking for?

When talking with potential realtors, make your requirements clear up front: ie I want to see xx house per week, make xx offers per week, looking for a house with xx features (in order of priority), etc. 

Property features four (4) Identical 2BR Apartments.

Additionally, I'm not seeing much more in your feature set that you can't do with a simple Google Shared Calendar (maybe throw in a Zapier flow if needed)?