I am in agreement with Carl.
Professional tax consultants are always the best way to go.
I do feel that;
You reasonably would file your 1099 with the state of TN, for your earned income/independent services rendered.
You are not considered an “employee” of the one fella, you are simply and diligently reporting your income to the State where you operate as an independent contractor.
I’m thinking that if you accurately report your earnings to the state, and provide the name(s) of the persons that you were monetarily compensated by, that should suffice.
Again, and as Carl noted... it is always best to seek a professional tax advisor, particularly when it deals with multiple state tax laws.
