I won (mobile homes) at tax auction! Got Bills Of Sale. Now what?

[Shel Masters]

I won some homes at a tax auction and finally got the bill of sale for each.

I know what to do as far as finalizing the acquisition: get the title, get the decals, and negotiate with the land owner.

But what should I do about the homes that are occupied?

- Are the occupants the owners of the land? How could I find out?

- A veteran at the auction said negotiate with them before tossing them out and/or moving the homes. What am I negotiating?

      - Try to sell their home back to them?      

      - Try to get them to sign a lease with me?

- They'll likely be hostile toward me. Should I just send them a letter?: "Dear occupant, I own the home you're in... give me some money"?

I've been the buyer, and I've been a landlord, But this is all new territory. Any advice appreciated!