Contacting the Owner of a Non Listed Compex

[Brian Green]

I want to target a 16 unit complex that is not currently listed on the market for sale in my area. I did some research and located the owner who is also local and has the complex owned within his LLC. The only sales history of the property seems to be in 2010 where it was either transferred into the LLC from his personal name or inherited and placed into an LLC. The complex was built in 1985 and from the exterior it appears to have almost no work done to repair or remodel it since being built.

My question pertains to an effective strategy for contacting the owner and communicating my desire to buy his complex. I prepared a letter of explanation with the desired outcome of setting a call or meeting to discuss but before I send the letter out what other tips or documents should I enclose to showcase my legitimacy as a buyer and my seriousness specific to this property? I can I ensure the owner takes my advance seriously? If I do not get any response from him/her, how long should I wait to follow-up with a 2nd request? Thanks in advance for your advice and guidance.