I would suggest saving some money and attending some CCIM courses.  

Hi Steve,Myself and my boss will be attending the sale on friday.

I would love to attend.

That being said, I feel that attending a Black Diamond Group meeting would be extremely beneficial for me.

Look me up, my wife and I try to attend as well.

Also there is a few Notes conferences coming up in the next few weeks that you might be interested in to learn more. 1) Scott Carson's NoteCamp 3.0 (a virtual conference you attend online)2) Papersource (in Las Vegas)3) IMN Redisential Mortgage Conference (Dana Point CA in JUNE)Thanks!

I recently joined a landlord group and plan on attending their monthly meeting, but what other methods would you recommend for networking?

If they charge money to attend it's probably not what you want

Attend upcoming networking events near you here https://www.biggerpockets.com/forums/521-events-and-happenings, it may help in finding a potential mentor.

I will definitely check that out on meetup.com and attend the meetings!