@Mel Snikta- If this is a good reusable toilet, there is nothing wrong in doing so.But, if the tenant gets wind of it, then, that might not sit well with them.Also, you have to look at the pros and cons of doing so too, with the more efficient use of water in the newer models coupled with the fact that the cost is not significant.Good luck.

But now that I have an interest in Real Estate I really need to go back and re-watch it to get tips on what not to do, like living in the model home lol

We got really good deals on Delta display models from a local plumbing supply house that shut down its showroom.

The On guard startle model is very bright.

They are an IRA custodian.I would caution that the provision of self directed IRA plans is a relatively small field, and business model/quality of service/experience should take higher consideration than location in your selection of a vendor.

We are very interested in the buy and hold rental model.  

The house was completely re-modeled upon purchase and in a way that made renting out the bottom seamless: 1,600 SQFT up and 1,600 SQFT bottom, BOTH having 3bd/2ba, each having FULL range kitchens, laundry rooms, living/family rooms, dining rooms, completely separate entrances (walk-out basement accessed around side yard), and bifurcated parking spots.  

I guess that depends on your business model and goals.

Zillow is, as others have stated, a business model based on getting you to their free site in order to derive profits later via other means. 

Occasionally.My business model is 95% referral based.