I know this is common practice for realtors, but I wouldn't have anyone on-site to supervise.

You may not know the northern New Jersey market, but is it common to make a tenant of a SFR responsible for lawn/snow removal?

Missing shingles and roofing leaks seems to be a common problem, which is easy to spot simply driving through these neighborhoods.

Somebody on here who gets the "tax benefits" principle  I think people try to sound or be to sophisticated rather than use common sense.  

Sounds like most investors are fragile in the common areas of reducing their take-out spending, driving older vehicles, and practice budgeting their finances very well.

My only complaint is that it may be too easy to use because if you have staff its actually very easy to make changes almost inadvertently and have no record of who did what that you can easily trace if you happen to find the error.  

Trust your gut, be careful, use common sense, and it should work out.

The most common thing I hear is "I wish I would have known about this yesterday.

So you should determine an investment strategy and what problems you will fix so you can add value to properties you acquire.This is one common strategy: Acquire a property at a good price and in an area that is appreciating.

This is a great place to learn everything you need about REI.Try looking at: The Most Common Misconceptions of Investing in Real Estate