There are many tests that need to be conducted to ensure the land is not contaminated (the tanks always leak).  

Currently in the process of studying for the test.

BUY quality SINGLE FAMILY homes SFH.that appreciate.4.Always do a home inspection using a certified home inspector ( with utilities turned on) and separately  hire an A.C. company to thoroughly inspect the state of the HVAC ( it might be blowing cold air today , which passes a home inspectors test) but the coils might be shot and the system riddled with leaks and crushed air handling tubes.

So far I'm testing this one https://www.ixactcontact.com/  this is free for 5 weeks after that $34.95, but I'm still looking.

@Dolores Waldron -- I have split tested mailings in the past with or without a return address.  

I would also "stress test" your #'s when you are buying a property, as in can I still make $ if the vacancy rate in my area jumps 5% or you have to lower your projected rental income by $50-$100 month.  

I believe it is important to have a plan and that it is ok to test that plan and change it from time to time. 

I bought REALdata software (express version) from Frank Gallinelli after reading his book and presently testing it.

I haven't really seen this model tested in a downturn, so not sure if I want to go into that with 100 unit, for example..

Hey BPer'sI am curious to know if other investors are having a radon inspection test completed for a long-term buy-and-hold property.