Some rehab style lenders make it difficult for newbies to gain maximum leverage due to lack of deals done.......NOT US!

The more you customize the software, the harder it is to maintain and you end up with vendor lock which in simple terms you are at the mercy of your developer(s) as they are creating custom code that is difficult to maintain without them. 

I was just thinking about my other career in construction and realizing I have struggled many, many times and I always told myself I don't need help in that area.If I could go back in time and pay another, older contractor a lot of money to teach me everything, I'd be have got here much, much faster.So the fallacy is to think that all the answers are right here on BP.

Yeah nothing to show but a successful real estate portfolio, partially funded by a software engineering career that lets me glue django and twilio together to roll my own spam tool in a weekend, if I wanted to.

If you're willing to educate yourself and have the personality for dealing with difficult situations, then it may be a good choice.Do yourself a favor: buy "Every Landlord's Legal Guide" by NOLO.

I've read (all my knowledge is theoretical) that tenants on government assistance can be really rough on properties (I also see that as painting with a broad brush) but the government assistance side of that is pretty stable income, and it doesn't seem terribly difficult to raise rent either, just requires 60-days notice instead of 30. 

Very difficult to force collection on a debt not secured by an asset.

It's really difficult to get those condos to make sense as investments in my experience.

as @Chris Seveney points out the recent opinion by the CFPB may make owner financing more difficult.

And if you are dealing with a difficult seller, and a shady sellers realtor, you'll be the one screwed over.