The property also has a pool, which appears to be decommissioned, how-ever, my father-in-law has been a professional install/maintenance 'pool boy' for many years, and I myself have done many jobs with him.

When the home inspection was done, there were big ticket items that needed work: needs new HVAC, new roof, excavate eroded and leaking sewer made of cast iron, install new sump pump.  

Get a rea title search, don't DIY.

They remain durable for a very long time.We have a decent in energy bill after installing TPO, our roofer told us TPO is very energy efficient as they are perfect insulators, TPO are made from recycled plastic materials.If you want to try TPO roofing go with an expert roofer offering good warranty and Insurance.Our previous garage was TPO roofed by an Industrial roofer named as Empire Roofing Corporation.

When you do have a closing, change the exterior door locks to help you out with security.If the locks taken off are still in good shap just install them at another address.  

Thanks but I am not in that situation, I am looking to invest money, and I don't want to learn the DIY way, I have funds to invest its about getting real professional guidance.

The seller is willing to work out their own installment agreement with you that will allow you to flip the property and then resell it.  

Pic is of a rental where I took up all flooring and installed VPF in the entire home. 

that may run you $10,000 depending on how deep it has to be, the window well and if ladders need to be installed. as far as bracing the foundation, that depends on what the engineer comes up with to " anchor" it.

Upgraded the kitchen, master bath, backyard, new flooring and windows in the 1/1, which were all DIY except for the irrigation in the yard.