It has not been favorable for both parties.

They bought them years ago and now have thought about selling due to market conditions being favorable, or maybe something has come up that is forcing them to sell. 

1st position available everywhere . 2nd position will be tough to find favorable terms 

To sacrifice a good tenant, which is hard to come by these days in favor of higher rent, may not be the trade-off that you need or possibly want.

Lenders set their own terms which can be more favorable to investors with a lot of properties. 

More likely is that they have been 'touched' by a many people providing the same service and narrow their selection to the few where they formed an favorable impression.

If you're using the builder's contract form, rest assured it will be very one-sided in the builder's favor.3.

We took the reverse action and started lowering asking rents until they moved.I suspect the reason that one property of yours turned quickly is because your asking rent was very favorable vs. local competition. 

The economics simply do not favor the investor.  

Almost always it is in the customers favor to exaggerate or make false accusations against a business they are trying to slander vs the business which has much more to lose.