My rule of thumb is to count the number of bedrooms in a house and multiply it by $200, that's how much I charge a week. 

Then you need to use the 2016 tax millage rates to multiply out the valuations.This will give you the tax amounts.

Multiply that by 3% basically gives me a discount of $3500 on the house.  

I like a gross rent multiplier (GRM) of 8 or less.

RE Taxes have local area multipliers that are applied to the assessed value to determine the annual re tax.

When you enter the address of a property and the number of bedrooms and baths, Rentometer calculates the rent by multiplying the average area $/SF by the square footage of the subject property.For example, if the average $/SF for 3-bedroom homes in an area is $1.10/SF, and the subject property has an area of 1,500 SF, then the estimated rent would be:1,500 SF x $1.10/SF = $1,650/MoThe problem is that Rentometer, et. al., does not take into account the specifics of a property.Property Specific ExamplesProximity to nuisances - Property A, which is located next to Interstate 15, will have a lower rental price compared to Property B, even if the physical attributes of the properties are the same.

I've also heard that mortgage company will look at what market rents are and take a view on that, rather than literally multiplying rent x cap rate to arrive at a valuation.

Multiply that by OPM and you have yourself a winning formula. 

You'll have to determine ARV, then multiply ARV by 70% and subtract your estimated repair costs to get estimated current value, which is also your maximum offer price.

Units: 23Building Size: 16,333 SFPrice/Unit: $130,000Property Type: MultifamilyProperty Sub-type: Garden/Low-RiseProperty Use Type: InvestmentCap Rate: 5.15%Gross Rent Multiplier: 11.80No.