Regarding borrow's DTI, Chase thinks that this item is not that important.I wonder will my high DTI impact the loan underwriting?

If you have a focused plan and prepared questions you can learn a lot in an hour. 

Quote from @John Keane: @Jay HinrichsGot it, I will definitely re-evaluate my profit split structure after what I have learned here. 

@John Reagan Johnson hope you don't mind a PMC answering, but most of our clients hire us because:1) They live out of state and don't have time & expertise to remote manage2) They don't have the time to manage3) They don't feel they have the necessary expertise and/or don't want to risk learning as they go and making an expensive mistake.Go read Kiosaki's Cash Flow Quadrant book.

Refer to your state, city and county resources for any required items, or recommended inspections. 

Regarding next steps, I agree that the best way to approach this would be to have one person act as boots on the ground and the other person handle the back office related items.

Have them send you a line by line item of what's needed.

$540 is not unreasonable for a home of that size and the items you mention.

In my personal experiences a lot of structural items start with bad drainage.

Make sure that you learn who the elected official is in the office.