Keep your entire business and documents such as tax records, bank statements, balance sheet, etc. These are your armor to get favor from lender. Aside from this, you must also show some documents that would enable you to prove that you can repay your loan. You must provide your properties to serve as collateral.
If you are hesitant to get the financing because of your bad credit history, you can still look for small business finance which supports bad credit business. There are lenders who are willing to risk with business with bad credit history, provided that you can assure them that you can repay your loan. Do your homework and find the best financing suitable for you.