Your aim is to sell the property for the highest price, and mass marketing gives you the best chance to do that.With that being said, there may come a time wher you have built a relationship with one or two buyers.

That's a change in policy from a year ago.

With the subprime meltdown, the tighter money policies taken effect, and the way the market has gone from high-appreciation to nearly no-appreciation for the time being, and interest-only loan won't help you much...

say my goal then was to protect my primary residence from anything that happened on a rental.Is having a large unbrella policy enough to solve all of my dilemmas?

Buy the Million Dollar Umbrella Policy.

By this I mean a property that is not inhabitable so likely to require a policy that is valid when vacant and under construction.Foremost would be one.John Corey

As of now, it's against company policy.

That the title company will issue you a policy if you but.

I aim to get 95% of the tenants to buy the house.As for a 'credit challenged' buyer one thing people forget is that you just don’t let anybody be the tenant.

I urge you to read your insurance policy and see what it says about lead paint, mold, other environmental hazards, etc.