Sole Proprietorship

I want to sell my sole proprietorship concern to one of my close relative with all its assets and liabilities. Please guide me about the procedure. Also, want to know if all the liabilities fully get transferred to new owner with the selling of the concern or do I need to mention that in sale deed about it specifically. There is no litigation/legal issue against the sole proprietorship as of now.

Please help asap

Thanks and regards

Rachna