Single-to-Multifamily conversion in Rhode Island: Worth the cost?

[Joshua T.]

While multifamily homes are plentiful in RI's cities, a job opportunity I am considering would require that I live in a fairly rural area where there are almost none. I believe in the power of house hacking and want to start building my family's financial security through cost-efficient living. So I am considering finding a large single-family house and converting a portion into an apartment. Welcome thoughts/advice on the feasibility and cost of doing such a conversion.