Is this a good deal? 4 MH's on 2 acres--$60k

[Tommy Vise]

I have a deal that I wanted to pass by everyone:

--4 Mobile Homes--Each is OK condition.  Need paint and some up keep but nothing out of the ordinary.

--In the County.

--2 acres of land that this small park is sitting on.  (Each unit has 1/2 acre.)

Each MH lot has city water, city electricity individually metered.

Each resident is responsible for their own grass upkeep.  

The only expenses that the owner said he had was insurance $800/yr, taxes $550/year, registration stickers $300/year.  

Total income is $1,250/month x 12 =$15,000

Minus 800+550+300= $1650

Income = $13,350  x .70 = $9,345 / 60,000= 15.6%

Is this a good deal?  

Am I missing something?

Thanks,

Tommy V