Are you saying you have superior skills to make this scheme work?

Creating an LLC and getting insurance on rental are two methods of "Asset Protection" that most real estate investors use to protect themselves and their assets. 

In my opinion, both have their pros and cons and neither is 100% superior to the other.

I'd send out 500 at a time, using a different mailer/method weekly.

Find Brandon's videos on YouTube for the "four square" method of analyzing homes and practice.

For active investments I advocate considering how you can diversify WITHOUT ceding your competitive advantage nor the superior profitability of the niche your in.As an example my business is running an investment fund and syndication high interest commercial mortgage loans secured by income producing real estate. 

I've been using the BRRRR method more recently with some success.

Used houses in the area sell anywhere from $75-125 a square foot.These are long term rentals that I do not plan to sell.I am reading the Rental Property Investing book and implementing the method that focuses on cash flow and that strategy states you need to have $300 cash flow per month, per property.

So, something to think about.Next, what methods have you used to determine what kind/size of property to purchase? 

Whomever will do her taxes when she does sell, (can be done prior, and should be asap) will have to submit a change of accounting method form .....I've had multiple clients that never took depreciation and when they sold, we had to fix it...doing your own taxes isn't as easy as some tax software companies make it seem