Using Business Credit to Acquire Real Estate?

[Mark Jones]

Has anyone ever used 0% interest business credit cards or lines to make down payments on properties and later refinanced the house/property to pay off the cards or just let the tenants pay them off? 

If anyone has done something like this or a variation of it, could you break it down here? 

Thanks in advance, 

Mark

[Mark Jones]

I have a personal line of credit but my mentor has advised me not to use my personal lines for downpayments and instead to get business lines of credit. 

He says using my personal lines will increase my DTI and affect my ability to get qualified for a mortgage, whereas by using business lines it won't affect my personal ability to get qualified for loans. What say you all?