The transition with the property management went smoothly; however, I've encountered some communication issues with the tenant.Initially, I sent an email, but I received no response.

Shellpoint has to be the worst bunch of people I have encountered.

However, I’ve encountered challenges and haven’t achieved the success I anticipated.

These guys built a Section 8 empire in Philadelphia and have encountered the very same problems you described and offer solutions.

I never gave the sellers a non-refundable deposit when I was purchasing off MLS, from a letter or sticker, however, I always took a non-refundable deposit from every buyer.  

One of the primary challenges I'm encountering is the highly competitive nature of Atlanta's Real Estate Market, especially when it comes to finding favorable deals in the vicinity I'm targeting.I would be immensely grateful for any valuable advice you could offer to a novice investor like me!

I understand encountering unexpected maintenance/cap ex, but unexpected property tax should not occur.  

The wall is just wallpaper we got off etsy, and Disney princess fathead stickers. 

However, I've encountered an obstacle: my lender has informed me that banks typically do not provide FHA or conventional loans for amounts less than $75,000.

Just as an FYI Here are some reasons why over leveraging a property is an issue Increased Default Risk: When a borrower has a high level of debt relative to the property's value, they are more likely to default on the loan if they encounter financial difficulties.