So you will have to consider all these things and their costs, along with any other renovations you will need to make for your potential property, and the prices that go with those as well.

There are also additional costs of operating and maintaining an LLC, like separate bank accounts, annual report filings, tax filings, etc.2.

"the typical home warranty costs $450 annually, and only 25% of premiums are paid to homeowners.

If it cost you $100-150 per month it will be well spent money.   

From what I"ve researched it sounds like quite an undertaking and costly if you want the approval to rebuild on the soil. 

After closing costs, agent commissions, etc... my net profit was $52,000 How did you find this deal and how did you negotiate it?

You need to factor the cost of refinance (average $7K which may change depending upon the price of your home)

From Cope Equities:"This project is already begun – no risk of it not starting – it already started, a $44 million dollar project ($29 million in costs, approximately).

And with the housing supply increasing and the difficulty qualifying for a loan at 7% interest rates, people that need to sell may start to lower their cost.  

We had to buy a new fridge for our rental property, which cost about $1000.