He paid.If you feel it's a legitimate threat, hire an attorney and let them protect you. 

The only way you'll know the extent is to hire a plumber to evaluate the entire system and be prepared to spend a pretty penny to bring it all up to speed.

A realtor I took a course from in college always impressed upon us to use an inspector you hire and not the one your realtor suggests.

I am hiring a property manager but still I am the one who will be in charge of the project.

Offer different unit, explain costs of moving out (new security deposit, hiring moving co, cleaning costs, new furniture) 90 days before end of their leaseSend marketing packages or gift packages to preferred employers surrounding property Reach out to old leads older than 90 days

When you hire a Property Manager, does the Tenant sign the lease with the Property Manager or the Owner. 

The PMC has found quality vendors, negotiated reduces rates for their clients' properties, verified the vendor is properly insured, received and diagnosed the complaint, hired the vendor, coordinated with the tenant, received the invoice, paid it and tracked it for 1099 reporting and does that each year as well.  

If you aren't comfortable estimating costs on your own or aren't willing to put in the work to learn how to estimate rehab costs then you need to team-up, partner, or hire someone you like a GC as others have mentioned to help you with this process.

I REFEAR A CXONTRACTOR THAT THE COMPANY HIRED, HE DELAYED THE CONSTRUCTION AND DID SOME BAD WORK THAT DELAY THE PROJECT TO DOUBLE THE EXPECTED TIME.

I do understand that if I am buying and managing the property myself, all my direct expenses to manage the business are tax deductible, but since I'm thinking of investing on a turnkey basis and planning to hire a property manager for day to day operations, following would be tax deductible as a passive investor.Mortgage InterestProperty TaxProperty Management FeeDepreciationInsurancePossibility of 1031 exchange (Future)When investing via a real estate syndication as a limited partner:20% of the pass through income from the LLC is tax-deductibleThe Syndication LLC obviously would be taking the tax benefits of depreciation, property tax, mortgage interest deductions etc., but as a passive investor, is it more beneficial to invest directly in real estate than investing via a syndication?