I work full time and plan to continue to do so but would like to add additional streams of "passive" income. 

Also keep in mind most people that are boasting their rate of returns don't seem to be saying if the properties are Class A, B, C, or D.One of the things that I do is look at my portfolio as a whole, I have brand new construction in Class A areas, in addition to Class B, and Class C properties.

(I've always thought that they couldn't give value to unpermitted additions.)  3.  

Each dwelling has variables to consider such as light exposure, reflection/absorption, finishes & materials in addition to the style that best compliments the architecture. 

And if the property you purchase is depreciable, you may end up sheltering additional income too.

I imagine that the length increases by some amount, but I doubt it would be a full year since many tenants feel fine riding out a month-to-month lease until they decide to leave.Do the downsides (forfeit of owner ability to increase rents after the year and potential to get stuck with a trouble tenant constantly calling for minor repairs) compensate for whatever this additional length of stay is?

Additionally, we are not asking the limited partner to have a "job", that's the beauty of it.

Additionally, you'll also need to confirm the rents.  

There is work that needs done on the property, so we'd have to be creative with where we pulled additional money from.

I know that's the case around here, additionally rental demand for SFDs are higher than multis which can result in better tenant pools.