They are as follows:• Qualified appraisers• Comparable sales data or “comps”• Gross multiplier approach• Capitalization rate method• Essentials of real estate investment analysis software We prefer using a specially designed computer program in conjunction with input from consultants and comparable sales data.

As for calculation, it would essentially be straight line so if it is residential you could divide the amount of purchase price attributed to the building by 27.5 (for residential) or 39 (for commercial) and then prorate that for the amount of time during the year you are depreciating it (if only one month then multiply it by .0833 (1 month divided by 12 months).

That’s incredibly tough to come by when the multipliers a lot of sales are using is 1.1 to 1.3.

So take the amount you save by not having PMI every month multiply by 12 and divide by the 10% down payment and you'll see the ROI for that decision.

Unit #1Rental Income: $950.00Mgmt Fee: ($66.50)Electricity: TENANT PAYSUnit #2Rental Income: $675.00Mgmt Fee: ($47.25)Electricity: ($21.72)Combined ExpensesGas: ($70.46)Water: (98.15)Property Tax: (78.42)Insurance: (100.83)Save for Income Tax: ($260.21) [I take the profit up to this point, and multiply it by -.25.

Since the rate and assessed value will probably not be on the same page you will need find them individually and then multiply the rate(Convert into percentage if displayed in another form) by the assessed value to come up with the property tax of the home. 

You multiply it out 30 years the spread will get bigger.

I think the situations where you have a county that limits the number of permits and are allowed to transfer the permit to the new owner might increase value, but in general, a cash flow multiplier (or more appropriately, a revenue multiplier) is certainly not common practice at least.  

To analyze the investment, I take the regular BiggerPockets CoC formula, but then substitute the rental rate I see on Airbnb (they tell you average price for the neighborhood) and multiply that by 30days * 60% occupancy (or whatever it might be for your area).How about you? 

It's a flexible asset class that allows you to multiply your capital exponentially if you're willing to put in effort, take the time to learn and get uncomfortable.