First multiple unit?

I would like some help with pricing this property. (,%20OH&priceHigh=&priceLow=&nodeId=750007014&radius=&bedrooms=&bathrooms=&type=&sortBy=bds+2)This is my first multi unit and it is for a good friend of mine son. Any tips would be great. Keep in mind the location, it is not the best, but may some day be a prime spot.



I came up with 929.00
379.00 for the building
150.00 for added square footage
100.00 for each unit

$1099 -100 for good friend of your son = $999

When I do mulitple units I figure how long it will take me to inspect the units and then times that by my hourly rate of $100 per hour.