Best way to contact apartment/multifamily owners?

[T. Hunter Bullock]

Hello all, I have been educating and networking for about 3 months now. I am looking to start my investing career in multifamily and have located about 5 properties in my area that I have an eye on. Could anybody possibly provide advice on the best way to contact the owners? Is it direct mail? If so should I send a LOI? or just an advertisement? Would calling them be too direct? Advice on general things like this would be greatly appreciated. Thank you, and have a wonderful day, Hunter Bullock