@Sophanara Khoeun
I agree with the other comments here. The 3 issues you described are all fairly large red flags, especially for someone's first property. You described 3 structural problems with the house that will likely wind up costing a large amount of money (especially the foundation issue). On top of that, depending on the severity of the structural issues, you will also likely run into problems getting insurance on the property or wind up needing to purchase very expensive insurance.
If you do want to move forward with this property, one recommendation I would get is to find a local contractor with experience that you trust and have him advice you on the scope of work that may need to be done as well as the cost it would take. This can then be used as a negotiation chip in order to lower the price of the property. Personally, I have walked away from any house that requires substantial structural work. Although there is potential profit in this kind of profit, there is also more risk associated as the repair costs can pile up quickly and create a scenario where you have invested more into the property than the repaired property would actually be worth.
For property management, I am personally a fan of managing your first property (with proper education or mentorship before beginning) since this is where you will learn first hand what is required in managing a tenant. This will give you greater insight and what a property manager needs to do to efficiently manage your property once you are ready to hand the property over to a manager in the future. This will help you with insight into how to "manage the manager".