I redid all the hardwood floors throughout the home, new HVAC and water heater.

I have gone through the property it has hardwood floor on the first floor, the kitchen seems to be in much decent shape and It seems like it was upgraded not too long ago.

Nice hardwood, porch close to main street of nice town.

What I recommend is that you find out what approximate costs are for big things like roof repairs; cabinet, and countertop replacements for kitchens; new appliances for a kitchen (dishwasher, fridge, stove); new laminate by square foot, new hard wood by square foot, carpeting, tile; new light fixtures; new door hardware, plumbing hardware; new doors, for front doors and interior doors; interior and exterior paint, by square foot usually I believe; retiling a shower, new sink, new toilet; new HVAC; new windows (per window);Then take all of this info (and don't forget to include the installation/labor costs, because a buyer won't be happy and will lower his/her opinion of your business and abilities if you don't include actual costs.

We handled everything from clearing lots, framework, slate roofs, to finished titles and hardwood flooring.Right now, my fiance and I are looking for an owner-occupied duplex as our first investment. 

Is it hardwood, tile, laminate, vinyl, carpet, tile or ? 

There is hardwood in the kitchen, but the kitchen is on the opposite end of the house.

I have also added some sweat equity in the form of refinished original hardwood floors and new paint throughout.

Anybody know of a good flooring contractor for hardwood installation in the Boston, MA area or north of Boston?

I kept hardwood flooring and trim in rooms that had it.With tear down complete, I began identifying work that I would complete myself and work that I would need assistance from a contractor on.