It has Roth component and traditional built in.  

Emergency Maintenance: Regular maintenance is on the owner, emergency repairs might be charged to tenants if they caused the problem.By proactively managing these expenses and clearly communicating responsibilities to tenants, property owners can maintain their properties effectively while minimizing unexpected costs.

Also keep reserves beyond your 30k for unexpected issues.

When you find out the present zoning of the property, the future land use and the local agencies comprehensive plan for how they see the area being developed (all can be done at the local planning office) you will have a much better idea of what you have just bought.If the land could in any way be developed into something more than single family residential lots, i.e. if there is any multi-family or commercial component than I would advise you to hire someone qualified to help you with the site planning of the development.

By installing our own, we remove the wear and tear and damage the tenants do by moving W/Ds in and out and hooking them up wrong (which is common) and using cheap components that cause leaks and destroy floors and walls.

Ensure you have a trustworthy contractor, a detailed budget, and room for unexpected costs.

He told me that the only time in his 30+ years that the scammer paid off is when the crook unexpectedly died and had a large life insurance policy that was able to pay off all the creditors.

Personally I try to reserve my HELOC for emergency or unexpected costs during a project, so if you can try not to use all of it for the initial purchase and planned rehab.

Reserve enough cash to cover 12 months of holding costs, rehab overruns, and unexpected delays. 

Real estate is a dynamic field, and adaptability can lead to discovering unexpected gems.Finally, enjoy the process.