I recommend that you find a trusted or recommended Mortgage Loan Originator (MLO), who can give you options for property-based loans (mostly investment loans) and they don't use your taxes but the P&L of the property.

DSCR loans are based off of down payment, credit score and either actual or market rents so it helps to supercharge an investor's real estate goals and net worth. 

Across the board, the worse the neighborhood, the better the cash flow, the better the neighborhood, the trade off for tenants base, better schools, low crime, etc etc.

Since you're in Texas, I'll use a town like:  Each town will be different based on the population living outside of town. 

One would learn more just by reading these forums and absorbing the knowledge and experience from the people who've done this before.A book is fine, these books are based off what? 

The beauty of this is that intermediaries who work with me know that I make “fair” offers based on VERIFIABLE facts, that I follow through with completed deals unless important information was with held or information provided was false, and that there’s absolutely no value in presenting deals to me where the seller/borrower/investor is unrealistic, naive, or otherwise wanting to “test” the market.  

But this is definitely a CPA question because the IRS rules are based on your AGI and phase out if your AGI is over $100k.

@Vincent WeselakIt’s a good idea to get an estimate for your insurance costs upfront since this can vary based on the property type and location, and it’s a key factor in evaluating your cash flow. 

Since I'm based in Tampa, I don't look outside and compare markets. 

I want to be able to find potential markets/listings nationally based on the return.