A companion unit may encroach within the interior side and rear yards as follows:a.

.$200k is a lot of money, but it's not enough to build MFR in SD.Personally, in your situation, I'd try owner occupying a place and building a detached companion unit out of a container(s) first.  

The Axis companion line is a good option.

There are a couple books out there on Quickbooks for Landlords, at least one with a companion website with videos and additional resources.

Alaska has a neat program once a year you get a 99 dollar companion fare good to anywhere they fly including Hawaii..

Nearly 80% of immigrants live in the thirteen urban areas for which profiles of recent immigrants have been produced as companion documents to this Canada-wide profile.

Also one companion animal, a cat, for a person with a qualified disability.

By far the best reward program especially for business because once you spend over 110k, you get a "companion pass", which means you can pick anyone to travel free whenever you travel.  

A dear friend trains dogs to be companions to autistic kids.  

The book's biggest feature is that it includes a number of activities and spreadsheets that are ideal for honing your analytical skills while being guided through the process.3) How to Create Lifetime CashFlow Through Multifamily Properties: The New Rules of Real Estate InvestingRod Khleif provides over forty years of knowledge in his book How to Create Lifetime CashFlow Through Multifamily Properties: The New Rules of Real Estate Investing, which is a wonderful companion to his in-person boot camps and podcast.