Once you decide on a specific market, you will want to narrow you search down to specific zip codes and asset classes.

Anybody here specialize in multi families in the Phoenix area, and is also an investor themselves?  

You found a PM who's specialized to this exact market and property type.

They are willing to give the lock box code after I have sent over a photo ID. 

Some lenders specialize in asset-based lending, considering rental income on Schedule E, especially if you have strong rental history.

Quote from @Sahara Faughn: I am currently in Preforeclosure with a scheduled auction on August 20th, and I am under a special forebearance due to medical issues and having 2 small children under the age of 7.

How did you decide which neighborhood/street/zip code to start with?

If you do not like bookkeeping/accounting/technology, hire a bookkeeper specializing in real estate investors.

Expertise and Experience: Property managers have specialized knowledge in managing properties, including understanding local market trends, legal requirements, and tenant relations.

DSCR guidelines vary by lender and working with a mortgage broker or lender that specializes in these mortgages can help get better terms such as a DSCR 1 ratio vs a DSCR 1.2 ratio.