Unit has brand new Berber carpet from previous owner but am thinking of installing either hard wood, engineered wood or porcelain tile.Anyone have a good floor installer or contractor who could do the work? 

I understand this would be a long process of permits, a structural engineer evaluating the house and drafting blue prints, etc...Question 2. 

What needs to be done- land fill, engineering, etc.? 

You will probably need permits possibly an engineer.

I work for a multi-billion-dollar general contractor in Chicago which means I have access to structural engineers, building estimators, subcontractors, and basically everything else you need to build something.

I would be sure the agent you choose is specifically well versed in the neighborhood or town you are looking into, and make sure that you review all engineering, environmental (if applicable, and depending on depth of testing you do, commercial or residential, etc.) and inspection reports closely.

Rich Dad Mentor Tres is a graduate of Texas A&M University with a degree in electrical engineering.

You prolly will need to get a engineer to draw up plans and certified it structural safe and make repairs.

For the first time in my life my income will no longer depend on my day job, currently as a software engineer.

There were a crack on garage wall, so I hired a Structural Engineer.