First the Baby Boomers start at age 67 or older depending on when you think they started out.

Leveraged: 12 Houses, $300K equity, $34200 per year cash flow, total cash outlay $300K Cash-on-Cash Return: 11.4% You have twice as many properties to oversee for a very small increase in your return %age.

However I have a goal of making a million dollars before the age of 40 and determination even though my age may not allow me to be taken seriously.

(I live in NC for about 20 yrs, and moved before my kids were school age) I would suggest that you do a little research on BP about buying tenant occupied properties though.

For example:"Across from the New River's public access, perfect for young professionals who enjoys kayaking and paddle boarding..." is saying "YOUNG" a no no due to age discrimination?"

The trend seems to be escalating quickly and is reflected again today in DOM at the same price points and in the average age of home owner at near 50 vs mid 30s for closer in properties. 

The closer they are in square footage, age, numbers of bedrooms and bathrooms, lot square footage, the more accurate they will be for comping purposes.

Besides the trash and sewage I would add in insurance costs, maintenance (depends on age and condition of property but one month's rent is a good start), and obviously the mortgage payment based on the terms of your FHA loan. 

A relative of mine had a house free and clear, got remarried and died before her husband who wanted to return the house to her grandkids(they were middle aged when they married and both had families from previous marriages) but he must've passed away before updating his will.

I have met a few people around my age at local REIA meetings.