Be prepared to lower your rent below you competitors who include water in their rent to stay competitive. 

makes sense you need to be prepared to payoff the 1st anytime.

Recently, PM suddenly told me that this property needs "lead testing".My PM is not aware of this I already have 2-year lead certificate from the previous onwer AND assigned an inspector for lead inspection for me.

It sounds like you are mashing a lot of different things together here.It does not matter at all if you have an LLC, or if you, or your wife is the owner - it doesn't change any of the tax positioning in the slightest.The test to be a qualified Real Estate Professional is at least 750 hours in real property trades or businesses AND  over 50% of your professional time. 

I generally agree that homes in Cleveland should be tested for lead.

I believe my wife and I pass all the test under REPS and material participation.

I got a feeling that life as a Private-$ Investor may be a great place to start, and these properties lend a perfect means to testing that out, solving 2 issues in 1 action, because you can JV your way out of the operational side of things AND retain that long term financial upside. 

I'd look for signs of arcing around those outlets.Other things I look for are how is the foundation, cracks in the walls (assuming lath and plaster), condition of the mechanicals, depending on what the house is built on, I may get a radon test done for the air and water (near me there is a lot of ledge, so radon is an issue in most homes). 

ACCELERATION Unless Landlord elects not to accelerate rent, all monthly rent for the rest of the Lease term or renewal period will be accelerated automatically without notice or demand (before or after acceleration) and will be immediately due and delinquent if, without Landlord’s written consent: (A) Tenant move out, remove property in preparing to move out, or Tenant or any occupant gives oral or written notice of intent to move out before the Lease term or renewal period ends; and (B) Tenant haven’t paid all rent for the entire Lease term or renewal period.

I am a new real estate investor who is looking to close on my first deal in the next 2 weeks and I want to be prepared for tax season.