For my rentals I have a sqft multiplier and a # bathroom multiplier because obviously more sqft or more bathrooms equals more capex and maintenance.

Multiply adjusted comp values by the given weight and add up the prices. 

I know a general rule of thumb in $5/SF for light, $10-15/SF for medium, $25/SF for heavy, but I'm curious how or if this skews in the DFW market.Hoping some of you wouldn't mind sharing the square footage multipliers that you use. 

I usually look at the price to rent a studio in the area and then multiply by ~0.75 to get the rent for a bedroom. 

I would take your estimated return on any investment and multiply it by a risk factor two calculate your ROI from real estate.

Your county website will give you the property tax multiplier to tell you your property tax per year. 

@John Carbone how did you arrive at a revenue multiplier of 10x to arrive at purchase price?

I find the "space travellers" are unfamiliar with the area, and they are starting off upset (edit note:  spell checker must have changed the spelling I used from "Pis***" to "upset") because they had to travel so far from home base...and mentally that already sets their calculater up automatically multiplying every number by 90%.2 - "Be prepared with comps that favor what I need the numbers to be for after I got a low appraisal". 

second questions : For multi family in LLC company is easy but I am stuck right now with a rental house and I really like to multiply residential properties and get more experience before update Mutifamily apartment  .

Paint: Interior only (assuming new siding does not need to be painted)Appliances: So you would expect $2,000 for an appliance package (since this is a duplex I multiplied by 2)?