After taking some time to find my values, I got back on my horse and set a course for honesty, integrity, and relationship.

Did my research, found a few sources and built up a portfolio of publicly traded REIT's with a small modest size of around $20K (and growing of course) producing div's. 

Milwaukee REIA and of course Brew City REI (disclosure that our company is an administrator of this group) are very active groups. 

Keep in mind that some, such as Internal Rate of Return (IRR), require advanced computer calculation.https://www.biggerpockets.com/blogs/8814/73755-18-essential-metrics-to-a-complete-real-estate-investment-analysisAs far as finding multifamily properties, you'd find them the same way you find a SFR, and there are many, many ways to source them:By building relationships and letting everyone know you're looking for houses and apartments:https://www.biggerpockets.com/blogs/8814/72664-35-relationships-to-help-you-find-more-houses-to-flip-or-wholesaleLooking for them on the internet:https://www.biggerpockets.com/blogs/8814/72016-55-resources-to-find-real-estate-deals-onlineand, of course, locating them offline:https://www.biggerpockets.com/blogs/8814/71506-27-ways-to-find-off-market-and-wholesale-real-estate-deals-offlineBest of luck!

This, of course, generates a tax bill.If you are self-employed with no employees then you can set up a self-directed solo-401k with checkbook control. 

I am trying to remain as professional as I can be just didn't know how to react or what to say when I got their e-mail.My husband thinks it's their way of trying to get out of the lease, but they didn't not mention anything about wanting to move in the conversation I had with them.I guess we will cross that bridge if moving out is brought up.

Obtain professional legal, tax and lending advice always.  

These are professionals with additional training and a stricter code of ethics.

I want to deal with professionals, students and youngsters.

I believe its currently around 3%; of course the tax benefits of this investment is nice as well.