If you’re not interested in managing it interview a few property management companies and pick the best to manage it for you so you don’t have to deal with maintenance and tenant issues.

It sounds like you're working with corporate housing placements so are you signing the lease with individuals or with the company itself?

Which company should I use for direct mailing?

I called EVERY insurance company (that I know of), and they all said if business is conducted on the property, they do not cover.

Is your plan to self manage or use a property management company for the future?

I would highly recommend reaching out to a property management company to help with the leasing.

If the interior damage is to the Contents, the policy may not include coverage for things that are not permanently attached to the building.If you have the Declaration page, it should show the Insurance Company.  

I was told by a coworker who owns a property there and he says he has a management company who does everything and hands off and after all expenses are paid, he nets between 2000 to 2500 per month in Tampa FL. 

The reality is, in this market if you're trying to do reno's from out of state you're going to want to go through one of the larger property management companies.

And could you recommend a good umbrella company (or an insurance broker who specializes in umbrella)?