Use this money to make 25% down payments on 3-4 properties (or a multifamily) in SD or Phoenix (where I’m from and my extended family lives) and from there, use the cash flow to save for more properties.

Is there any possible way that I could use my next mailings to them to extend more interest and secure an agreement to purchase like you outlined above?

So we asked the seller to extend the escrow period by 7 days.

(He also had 2 dogs, a collie and a large white pitbull, which lease stated no animals) When speaking to him, I even extended another generous offer that if he was gone by the 6th, I would GIVE HIM $500 (probably another mistake, but he is a subcontractor originally from another state that works job to job and could work for cash.

Our plan is by extending the loan terms out to that length of time, the minimum monthly payments will be much lower, but we'll still continue to pay the same amount on them as we are now in order to pay it off in the same amount of time.  

Implement a marketing plan that you can afford to continue to operate over an extended period of time.  

Just when his contract is about to expire, he extends it; sometimes by a day, or by several days.

What happens if the property is vacant for an extended period (a month or more)?

The main challenge is the time frame and the unknown if the damage extends into the area's that I can't see.I appreciate all the feedback. 

Remove the tile with chisel/hammer, remove the door, install shower wall panels (extend them slightly out of the shower so drywall wont get wet) and install a shower curtain.