You can use these tools to find off-market properties. 

Should I still protest property taxes and use the lower taxes it as an added "benefit" to the new buyer?

I have the money to pay it off.

I know a few RV park owners who 'pocket' a good percentage of their revenues in cash to keep taxes lowered. 

A couple of the books that I would recommend is 1) "The Definitive Guide to Underwriting Multifamily Acqusitions by Robert Beardsley and 2) "The Hands Off Investor" by Brian Burke.

This separation helps in maintaining clear financial records and simplifies tax reporting and financial management.Setting up an escrow account specifically for rental income within your LLC can offer several benefits:Financial Clarity: It separates rent payments from other operational expenses, making it easier to track income and expenses related to the rental property.Legal and Compliance: Helps in demonstrating that rental income is kept distinct from personal or other business funds, which can be important for legal and tax compliance purposes.Tenant Transparency: It provides transparency to tenants and other stakeholders regarding where rental payments are deposited and how they are managed.While it may not be a legal requirement in all cases, maintaining an escrow account specifically for rental income is a prudent practice that many experienced investors and landlords follow.

She claims most of the time it’s her kids playing and watching tv especially know that they’re off for the summer.

If your rental is nicer, has off-street parking, and is updated the rents can be more than double $850.

You're better off networking with REIA meetings and meetups and meeting Agents there that know how to work with investors.

The challenge that many borrowers run into when looking for larger equity lines with limits  of $250k+ is that they typically require full income verification (not always bank statement and DSCR exist) with lower DTI ratios (43-50%) however although the repayment scheduled is based off a simple interest only payment, (usually a 30 year amortization schedule with the initial draw period of 5-10 years) the qualifying rate is based off of the converted twenty year amortization schedule (240 equal installments) of the payback period.