Newbie to Multi-Family Property Management

[Candace Hunt]

Hello everyone, I hope I'm going about this in the right forum. 

A little background: I'm a property manager, licensed VA real estate agent, and investor. Currently I manage about 100 residential homes to include, single family, condos, townhouses, and duplexes.

I have been approached by an investor to manage a 25 unit multi-family complex, if he decides to go with me it will be my first unit this large. Basically, I'm just reaching out to other landlords/property managers/investors for possible advice from your first multi-family experience. What do/did you look for in a property manager? Is it a huge difference in multi-family and single family? 

Any thoughts and words are appreciated.