To utilize the remaining free time you have throughout the days off with a more active role in real estate, you could look into flipping, wholesaling, becoming a part-time realtor, or running an airbnb.

It already has a JADU (attached studio) that rents for $1350 for 350 sq ft with private washer/dryer and all utilities paid except internet.

I hope someone can help with what kind of big expenses  are in the multi family properties i need to know when looking for properties(can only think of roof, deck, insulation , heating system )Also, Not sure if I jump ahead but I am trying to sort out all the related expense for rental property below with my conservative estimate per yearProperty management fee (10%)insurance :2500property taxes: 2000 -3500Owner paid utilities : 2500( in case of paying oil burning heating system , if tenant pay their own electric heat so i guess i can eliminate this expense)snow/lawn: 1200Accounting cost: 100Vacancy reserve (5%)Maintenance reserve (10%)Can anyone give the idea if i include these expenses correctly ?

I can do the project in phases, but I am in for quite a bit already, the land acquisition, engineering, architecture, horizontal construction for utilities, water retention and so on.  

@Jerel Ehlert  I always wonder about internet younger tenants consider it a utility but is it really a utility?

If not, going all electric would also simplify the utilities. 

Even the very cheapest manufactured options are going to be much higher than that when you account for all cost factors (in case of manufactured: finishes, transportation, prepping pad, utilities).

If all utilities are included, look up the comparable price on rentometer and active listings for the top half of the house. 

It does state the minimum term, and the tenant is responsible for all costs (rent, utilities, advertising, transportation costs to show the property) until either it is rented OR the lease is up.

The car loan does not concern me at all, I want to see the prior address history and any odd items that could be unpaid utilities or prior landlords from the credit report.