If so, why is that a cost per month?

All properties are in good living conditions.Here are the Properties rent and size1. 2bd/1ba  rent $300 per month 1050sqft2. 1bd/1ba rent $325 per month 645sqft3. 2bd/1ba rent $350 per month 1050 sqft4 3bd/1ba property manager lives rent free could rent for $600 per month 1200 sqftThe sellers chose to do low rent because of the neighborhood but each property can easily pull in a extra $100-$150 per month.My question to BiggerPockets is how should I determine my purchase price?

I'm not 100 percent interested in fix and flips at this time. 

Average price per unit $150k each 2/13/15.

You can make it clear to the tenants that they will be held responsible for excess damage or waste caused by the animal,  just as if they themselves did it.While you need to be careful to avoid a claim of retailation,   maybe schedule the next couple rent increases to be a couple percent more than you otherwise would,  and bank those funds towards expected greater turnover costs.  

@Tuan Tran Total gross rent per year minus expenses (not debt service) equals Net Operating Income (NOI).

Just my 2 cents and good luck

. $420Prepaid Interest ($19.86 per day for 5 days @5.125 %) Property Taxes ( months) $99F. 

My final two cents:  There are very few brokers with over 5 years of high volume MF experience in the Twin Cities. 

To get 30 year fixed at or around 5.5 percent (about where it’s at currently) you need to get a Fannie/Freddie loan and close in your name.