New to RE investing , can I claim taxes fees on RE mentor/coaching, including Real-Estate software system package as RE start up Business cost? 

The IRS considers fence replacements as improvements that extend the life or value of the property, even if it’s replacing an old, damaged fence.The depreciation period for a fence on a rental property is 15 years under the Modified Accelerated Cost Recovery System (MACRS).

Tenants love to crank AC systems to absurdly low temperatures which creates a high likelihood of breaking the AC unit.

Pass-through costs: In some rent control systems, certain maintenance or capital improvements can justify rent increases (subject to approval). 5.

Setting up systems now will help you scale smoothly as you grow your portfolio.

@Kristin Boekhoff what's most important is to create a system you can follow 90% of the time or more. 

They claimed the compressor was overworking, used an outdated refrigerant that’s no longer available, the indoor coil had a cracked pan, and the system was beyond repair.

I am getting really into code, building systems, job cost, etc.

My best advice is to work with a realtor who is also an investor and can easily plug you in with their systems and network of GCs, lenders, and PMs.

Plus they have pretty nice tiered system that let's you add on as you grow.I've used REI Blackbook and REI simpli for real estate stuff I preferred REI Simpli.