Purchasing second property in California - Financing

[Robert Jensen]

I am looking to purchase a second property while using the appreciation on my existing property as a down payment(30%). The property I am looking at is a duplex with long term tenants. I am currently with quicken loans and was told they could not use the tenants rent as income for a loan. 

Are there any recommendations for a lender that would lend based on existing rental income? I am in the Bay Area if that matters. 

Thanks