@Dan Chaney
If you read through my comments in this thread, there are many more details than in the original post...
As far as lending, you are correct - you'll start maxing out on conventional loans at around 10 or if your debt to income ratio gets higher than 45%-50%. I used conventional loans as much as I could on my first few properties, which were mostly SFRs. In the last 2 years that I've been buying multi-family, I've been using only commercial financing, which works very differently and doesn't have a limit on the number of properties you can finance.
As far building your network out of state - it takes a lot of time (many months). I've visited the cities I invest in many times, met with all of the people I work there on each visit, on top of regular phone conversations with them, especially property managers. You can't expect people to "do the work for you" without putting in the work and processes in yourself.
@Ian Walsh
50% rule is too general. If you're serious about buying a property, there is no reason why you can't look up what the property tax bill actually is, what the insurance is going to cost, estimate maintenance and cap ex based on the actual property condition, etc. I just see to many people use these rules and think that's all it takes to analyze a property, which is not the case.
@Rene Dunnagan
If you're saying you've spent $25k just to "learn" and "set things up", without actually buying a property, I'm a little shocked. There are so many free resources, especially on this site, that I don't think you need expensive courses or seminars to start investing.
Frankly, you also don't need an LLC, especially if you're buying SFRs with conventional financing and without partners. You won't get any benefit out of it.
@Jerome Kaidor
I think @Jay Hinrichs was speaking from the point of asset protection and risk mitigation. Once you get a few dozen properties, I would agree with him that you don't want to over-leverage your portfolio. But at the same time, refinancing to pull cash out is definitely a viable strategy to keep growing.