@Nick Scullin decent schools, maybe even a little downtown hub and certainly a high owner occupancy rate will mean its a very desireable and hard to afford town for renters.

What else do you consider as an income stream and why?

I would not accept a balloon payment, unless it was something like 10+ years out, giving me plenty of time to figure out what to do to get out of it.I think the seller just wants a long term cash flow stream and is not super interested in continuing with his real estate ownership. 

Renting allows you to play the cash flow game, refinance, get out when you need to and eventually have a hefty income stream after 15 years where you only have to expand when you need to. 

The owner ONLY want to sell using Seller Financing for several reasons.His goals it sounds like are: no realtor fees, spread out capital gains (will likely keep him in a lower bracket) and a steady safe income stream for the next 15+ years.

If you were running numbers on a potential multiplex property, with 3 different streams of income:- 2 fully rented apartments- Detached 2 car garage- 3000 sq ft Zoned for Commercial use & storefront (but I’m looking into rezone options)what are your creative ideas for the rezone space?

The cure to both - the 4 ions: education, action, progress(ion), not perfection".Learn to use BP to its whole potential:Subscribe to BP blog and podcasts and start reading posts and listening to their podcasts collection.Find and connect with other BP members that are in your area: http://www.biggerpockets.com/m...Set up keyword alerts to be notified of the topics that interest you: http://www.biggerpockets.com/a...Read Beginner’s Guide: Real-estate-investing (http://www.biggerpockets.com/real-estate-investing) + Actionable-steps-to- reach-investing-goals (https://www.biggerpockets.com/renewsblog/2015/12/17/actionable-steps-reach-investing-goals)You can find a glossary of some acronyms here: https://www.biggerpockets.com/...You might also want to read: The Ultimate Beginner’s Guide - https://assets2.biggerpockets.......actually the entire section on Guides - https://www.biggerpockets.com/...BP has a whole section dedicated to education and starting up - https://www.biggerpockets.com/...Get busy with the entire Education section on BP:property-types (https://www.biggerpockets.com/hubs/property-types)finance (https://www.biggerpockets.com/hubs/finance)strategy (https://www.biggerpockets.com/hubs/strategy)analyze-deals (https://www.biggerpockets.com/hubs/finding-deals/analyze-deals)property-management (https://www.biggerpockets.com/hubs/property-management) (including TENANTS MAINTENANCE)business-operations (https://www.biggerpockets.com/hubs/business-operations) (and the sub section on REAL ESTATE MARKETING TOOLS & TECHNOLOGY TAXES & ACCOUNTING LEGAL TEAM)One way or another you will pay your "real estate tuition" - either in time, effort or money.

check it out here:https://www.biggerpockets.com/forums/521/topics/762134-central-florida-real-estate-investment-hub-meetupHope to see you there!

@Melanie McDaniel I think live stream is a great idea!

@Joachim Roselio,The other posters have pretty well covered it, but just to sum up:If you do it right, rentals are a stream of income.