When it comes to pricing structure; the rent per square foot, price per square foot, and property appreciation are relatively uniform across the individual submarkets so if you wanted to calculate or even model out potential rental yield it shouldn't be a large hassle. 

@Leigh CorcoranI typically set aside $30 per month per unit in my cash flow models.

I had managed to get 3 owners onboard with my business model, and soon had 8 apartments in my name.

A common business model is to acquire 10 properties over X years on conventional loans (or until you max your debt-to-income ratio) and then you cash-out refi up to 75% LTV (assuming you have enough equity at the time) on all those properties.

Are you trying to model something generally or gut check a specific investment's given numbers?

The old guard of white collar service industries such investment banking, consulting, and law may move to a hybrid model.

My brokerage has a few listings with builders and I've sat in the model house before prospecting for customers without an agent.

Many people have transitioned to this model and are doing extremely well.

Could help in determining if you actually like your investing model in the first place.

Plan your business model accordingly.