The only one I think I'm eligible to use (remember, I'm in TN) is Wells Fargo, and they only go to 65%. 

So I assumed the same $10K CapEx here as well.This is a long-term buy & hold property (5+ years) looking to generate positive cash flow and deductions for tax purposes (accountant says we need more deductions).Rentometer claims around $825-$850 is a decent rent.

Keep it for capital expenditures, future repairs, mortgage payments and make-ready costs while you have turnovers between tenants, insurance deductibles for hail/fire/flooding and the like.  

If the LLC is only in my name, would I be the only one to get the tax benefits (business ownership, mortgage deductions, etc.)?

The landlord/tenant laws spell out exactly how the security deposit is handled -- usually you need to send an itemized list for any deductions and the remainder back within x days. 

Get the Nolo landlord tax deduction guide book.

All taxable items should be the gross amount instead of deducting the tax.

I would also have to pay out of pocket for the master pocket deductible, which can be anywhere from 5k-25k or more, depending how many claims the HOA has had.

Also up deductables.   

I have a $2500 deductible with a $250,000 limit.