I have a deal in my hands of 7 mobile homes all on separate .25 acre lots and all rented out to long term tenants.

I have zero experience with this but how would you deal with electric and other utilities? 

I'm new to doing owner financing deals.

I do live close by to a school, hospital, grocery store, gas station.

It's not something you need but some wholesalers do one to provide to buyers when promoting the deal. 

Nothing to absurd. advice: just get involved, but make the deal work.

How did you find this deal and how did you negotiate it?

When he does move I am sure you will have some yard work etc to deal with but if he stays a long time then its the cost of doing business I guess. 

Some of the usual reasons why people would sell to these companies: If there is money owed on the house, the house is in terrible shape, you don't feel like dealing with selling it, or you don't want to pay realtor commissions.

It might be easier to look for a partner to put up the capital if you find the deal manage the renovation and other time intensive activities.