I purchased a lot with a mobile home on the courthouse steps and someone is living in the mobile home. Whats next?

[Riley Higgins]

Hello everyone this is my first post so please bare with me. About a year ago I purchased my first sheriff sale property. I had done lots of research and and found a property that I thought would go real cheap at the auction. I go to the location and see a mobile home that is clearly abandoned but looks like a home that can be saved. I go to the auction and purchase the property for a $700. Thats right $700 bucks. now that I have done further research it turns out I purchased the property next to the one that I thought I was getting. Only this property has someone living on the property.  I have tried to send several letters to the address on file and even a post office box that is presumed to be related to the property and all have been returned to sender. Does anyone know what my rights might be in regards to the mobile home on the property? I have gone to the tax office and found that the mobile home will go up for sale at the next tax sale and the tax office has not had any luck getting in touch with those tenants either. So Should I try to purchase the mobile at the next auction? This purchase was made in Anderson County Texas.