Since you (at this point) think that you want to go into the landlording business, while you save money, rather than trying to figure out how to scale your future business, figure out what your strengths are, what your values are, and what skills you need to run the business you are planning and then start acquiring those skills.

We have about 20 meetings per month on a variety of topics including flipping, investing 101, landlording, multi-family, advanced investors etc.Happy to get you a guest pass if you are interested and also be a resource as a Realtor if you need.

Mesquite is tough on rentals/landlords. 

To manage and grow your portfolio, start by joining local real estate networks like investor meetups or landlord associations.

But you need to learn all about landlord/tenant laws, how to do basic repairs, know what average labor and material costs are for common projects. learn about payment systems, how to interview property managers, tenants and handyman services, build a team of realtors, contractors, title, hard/private money lenders, inspectors, appraisers and soooo much more. 

The landlord always needs insurance to cover the building / home if it's financed. 

For example, landlords can usually afford to pay more than house flippers because flippers incur higher costs for renovations and must cover agent fees and related expenses.

Mainly investors/landlords or home owners?  

It is my opinion that renters and (Landlord owned) ice makers do not mix- unless you want to pay for a lot of repairs.

Its the long term landlords that have to be concerned with prop taxs