I actually had some solid advice for you until I saw your reply to @Kevin SobiloThe post is impossible to provide proper advice.  

It's a credit score. the best way to build credit is to have credit, use it liberally and use it properly.

They don't build a proper reserve, failing to account for turnover costs, vacancies, capex, etc.

Moreover, if you sell or the tenants want to move and their rents are well below market - they might be in for a shock/lifestyle adjustment/unable to afford current market rents.

Now if you want to buy and live there forever or you want a specific location or lifestyle or the amenities, might be something to consider, but not for investment....they're for living.Your best option right now depending on your income, is probably to buy at least 4bed house or 5 bedroom if you can make it work financially and rent bedrooms. 

Financial freedom goes beyond simply replacing your current income—it's about sustaining your lifestyle for life.

The time it takes for the draws from tenants and then the ACH transfer to you leaves you getting pain on the 7th or 8th of the month, the $1 ACH transfer fee is an annoyance that has drawn some complaints that are as petty as the fee feels, the new tenant application features are sub-par, and I'm not sure how well it properly informs tenants of the additional charge for credit cards as I got panicked texts about the added fee from a tenant already going through some hardship.

If you are willing to sacrifice part of your life style, you can always consider living one room/unit of the house and rent out the other vacant unit out to lower your monthly mortgage payments!

I'm a project manager by career, so I know with proper preparation, anything can be successful.  

Trying to figure out the proper, best, and alternative routes to making meaningful relationships and wondering what the most effective means is to developing leads that may come along in the probate process.