Needing some guidance with potential deal :)

[Amber Stout]

Hello BP,

I am in the process of analyzing a deal and need some guidance. The property is in St. Petersburg, FL and is a duplex tenant occupied month to month. Everything in the home has been renovated a year ago and all is updated. 

This property would be owner financed with 15% of the sale price $130,000 at 8% amortized over 30 years making it a monthly payment of $810.

Total rents is $19,200

Water/Sewer/Garb. $1,300 last year
Insurance $1,627
Tax $640

Tenants pay electric, cable, etc. on their own. 

Although I have not analyzed many deals... based on the 50% rule alone with the $810 mortgage payments, the numbers don't appear to work out great.