HI @Gerald Gomez
Multi family has a lot of great options and paths within it. Are you going to be looking for distressed properties or properties that are already cash flowing? What size property,1-8 units or 8 and more?
I like 8 units and above and I get a lot of deals from commercial brokers, I would recommend getting on the mailing list of the commercial real estate companies that sell multifamily (CBRE, MLG Commercial, Marcus and Millichap, Sigel Gallagher, ext) they are a great resource and typically know who might be interested in selling.
I also use the old school method and drive around a look for “For Rent” signs and call the owners and see if they have any properties they are interested in selling. Its time consuming but is a great way to know who owns properties in your target area.
I have also been looking into joining some southeastern Wisconsin groups to help network and get connected with other investors and vendors. I have heard good things about Apartment Association of Southeastern Wisconsin () It is paid membership but the benefits look to be worth the membership fee. They also have monthly meetings which would be a great place to meet people that can help you grow your business. I am probably going to join next month; I will let you know if I think it’s a good investment.