If this was overlooked, consider seeking a second opinion to ensure no missed opportunities.This post does not create a CPA-Client relationship.

She will never replenish the deposit if you allow her to use it.FYI, I'd have a lawyer on tap ready to process the eviction.

Would a long-term rental be a better option just to get some experience with the home-buying process, before jumping into Airbnbs?

Last thing I want is any additional government friction in any processes, much less investing.

Not essential but I've used it for other things and it's really cool when you are building out a new process, design, or work flow with your team as well.  

Quote from @Isuf Aruci: Hello all, Is there anyone that is familiar or can guide me to the process of land development ?

I was a foster child who put myself through college on my own, and I have relied on some good friends for a place to stay as I grew up, which has motivated me to create a better life for myself.I have done a lot of research on real estate, and from my perspective, it seems as if wholesaling, which I feel my sales skills may help with, would be a good place to start to make some extra money to speed up the investing process.

If not, pay a coach or mentor to help navigate through the process. 

Perform the same task in each app to ensure a fair comparison.Load a property with pictures and details.Market that property.See what your marketing looks like from the public's perspective.Submit a fake application to see how easy the process is.Run a credit/screening report on yourself.Enter a maintenance request, assign a vendor, and attach a fake invoice.Enter charges to the tenant's ledger.Enter recurring charges and automatic late fees.Sign documents electronically.Run owner reports.After testing a few apps, one should clearly stand out.

I highly recommend you read it closely and develop your process.