I agree with @Brian Van Pelt, I think in an effort to bring additional value to the client you might be overstepping what your area of expertise are.

Because one of the pillars of the “Howey test” is that the profit derived comes from the “efforts of others.”

How much effort should I put into the landscape for a nice profit if I intend to rent this property out in the future?

I understand that revitalization efforts are occurring around Bull Street as well as in North Columbia.

This is difficult to do with a product like real estate because it has to be constantly and consistently managed in order to produce a profit; your success or failure in this area will be directly correlated to the effort you put forth in properly managing the asset. 

I know for a fact that I can make 2-3 times my normal w-2 job if I put all my efforts toward REI.

The fact they have not, tells you the lender sees less value in the property than the cost/effort of foreclosure.   

I understand that revitalization efforts are occurring around Bull Street as well as in North Columbia.

He came to my house and gave me $2000 cash for my time and effort.

This isn't perfect, but it has allowed me to be competitive in my market, avoid doing taking the time/effort into a rubs program.