Real estate line of credit

[Ben West]

My family has 28 SFR that are debt free. I'm wanting to bundle 6, 7, 8.....in order to secure a line of credit. I spoke with Bank of America and have a call to a local Credit Union, but wanted to ask on here if anybody new what was available.
I really didnt think it would be that difficult to get a $500,000 line of credit secured by 8-10 investment properties, but either I don't know the language to use or I'm not speaking to the right people.
Any guidance would be appreciated.

Thanks.