I am going to ask for multi property discount. 

Fun fact though, a lot of STRs listed on Airbnb do larger discounts for longer stays so you can find some good deals!

Undeveloped land needs to vetted for proper development and developers will want a lot of that done or a steep discount or long timeframe to get it done with no assurance that it will work.

Here is my referral code that gives you $10 discount If you decide to go for it- 11811.

And how many discount points?  

I am a huge fan and I have a discount code if you want to reach out for it. 

Just get a good cleaner and handyperson and keep up on the maintenance of the mechanicals (furnace, water heater etc) and you will reduce problems tremendously. 

Are you listing as a Realtor or getting sellers that want to sell at discounts?

This has been tremendously helpful for us.  

Thanks Hoi,You as the owner, would source a renters insurance company that would give you a bulk discount of say $6/unit/month.