People routinely try to rent places they cannot afford, so if they need to spend $400 extra each month for your house, ask them where that money comes from. 

The thing with buying vacant land is that there are not many ways to make a cashflow, and the lot may require routine mowing if it is in the city.

My reasoning is pretty easy to follow- 1) Many of the rest of the world's central banks are lowering rates in fact some are going negative.  2) Inflation is currently a non-factor and is expected to be until 2018 given the continuing rout in commodity prices I don't see that turning around any time soon. 3) Labor participation rates are at long term lows.  

I am a full time Rehabber and a Realtor as well,  and I routinely come across good buy/hold investments which I provide other investors with. 

I provide a complete acquisition and management service, covering the following.Pre-purchase inspections to determine repair/upgrades needed.Coordinating renovations and preventative maintenance.Tenant screening, writing leases, rent collection.Payment processing to vendors for repairs & routine property maintenance such as air conditioning, pest control and lawn care.  

You don't need to set aside time and drive a certain area, you just do it all the time, it should be a part of your daily routine, If your going down a street anyway why not keep your eyes open and drive for dollars at the same time.

3) I don't call it "advertising", but I have cash buyers that I trust and I routinely discuss deals with them (not all but the ones I am close to) to get an idea of what they will pay.  

If you're uncomfortable with someone dump them immediately, it will never work out and you're wasting your time and money.

Develop a follow-up routine.

I'm quite excited at the possibilities@Joseph Quinones another thing, don't be too uncomfortable with a low offer, you'll be surprised what you can get if you ask!