You can design the income stream to meet a seller's real needs, just make sure they fit yours as well. 

You still have the inocme stream regardless of the property value (baring unforseen and extremes circumstances).If you buy to hold for an extended period and incorporate both some cash flow and spec on appreciation, then buying continuously over time using cost averaging is the most effective way to invest in my opinion.

No experience in real estate, but i'm pretty convinced that investments + revenue streams is a better way to live than hourly/salary pay. 

If a tenant leaves in mid stream, it causes a hardship for the landlord if he cannot find a new tenant. 

invest in or around boston, this city has a very high rents and a constant stream of renters.

Cash flow is only ONE income stream that stems from buy and hold investments in RE.

They want the rent roll to season so they can see that the rents are stable at a level before they will lend on that income stream.

Definitely the mountains with thick forests, clear mountain streams and rivers, and lots of outdoor recreation! 

Back now, ready to apply the hard learned lessons of our first purchase, an owner-occupied two family, to a first strictly investment property.My motivations and goals are far more clear and concrete now than in the past: Find and purchase rental properties with positive cash flow > Develop passive income streams > Escape from the cubicle farm > Apply hard won time and flexibility to my family.

He's going to show me the entire process and in return I'll make sure he has a steady stream of deals coming in.