Invest in real estate to supplement my long-term needs (fund child's college, retirement) and long-term wants (travel and feed my foodie-ness). 10 units in 5 years, perhaps.

I would 'list' a home every now to produce and supplement income which I would like.  

My thoughts starting out are to purchase a duplex, rent out one unit to supplement my mortgage cost, live in the other until I can make a move to a more permanent home, then rent out both units.

Think about property taxes ( after year one of purchase: prepare for California supplemental property tax) .

Considering you're working part time your best bet is to pick up something else part time to supplement your income. 

Calling being the first, and then scheduling a time to get out there in person once I have my business plan and supplemental materials in hand. 

I am thinking of this from a sales perspective as a means to help people diversify their portfolio using real estate to supplement their other investments. 

Portable heat pumps are another easy option for inexpensive supplemental heat.

and eventually expand into a buy / hold model to supplement income.We welcome the opportunity to work with other real estate investors who are also working in this region in either a partnership or mentoring relationship.

But she may prefer payments over the next few years to supplement income.