You can identify problem settling areas that may cause problems on newer construction as well as old, and on old you can take a look at the condition of the pipes and get an expert's opinion on them.Good Luck!

Cranking it down too far doesn't necessarily make it colder and it could cause problems, as you have suggested. 

Looking to continue buying single family homes at the moment and continue renting cause I’m noticing the Baltimore area a lot of people are looking to rent.

That will solve the root cause.

Our revenues have not dropped due to weather, but if we did get hit hard by a hurricane it could, rather would cause losses in rental revenue. 

Oh and the original Incumbent tenant dies of natural causes in the unit one month prior to closing in June which delayed it again.Needless to say...

Look for cracks in the foundation, walls, or ceilings, as these may suggest settling or shifting.Additionally, keep an eye out for pest infestations, particularly termites or carpenter ants, which can cause significant damage to wooden structures.Lastly, be aware of environmental concerns such as radon levels and underground oil tanks, which can pose health risks.Having a qualified home inspector conduct a thorough evaluation is essential.

Unless there is money changing hands that lease is only going to cause issues for a landlord.

I'm cash flowing net about $2500/month but I could add another $950 by flipping everything under self management.The one Pro i see is definitely the cash flow but i know many of the cons could cause some headaches.

Most recently, I worked with a client out here in Colorado that let their parade of homes house (from 25 years ago) in a gated community literally fall to pieces; mold between window panes, water infiltrating the kitchen due to lack of roof repair, patio pavers crumbling apart, downspout misplacements that caused water infiltration into the living room....just a mess.