If Code Enforcement is involved, I imagine there is a deadline they must meet.Then everything Douglas said.

We agreed to a 1-month extension on the condition that she pays outstanding balance (she hasn't) and also that she'd be liable for eviction fees should that occur (the deadline is end of April).- Shortly after that agreement (which btw, I have NOT signed, but she has - because she failed to be home at the time we agreed to meet and I and I left it in her mailbox - also saying it's due by April 1, a deadline she failed to meet (she signed it on the 5th) and also part of the requirement was her paying the outstanding balance, so my attorney says the agreement is void unless I want to honor it) I got my water bill... it was about $2100 for that month, previous bills have been barely over $300 for all 3 units.- I called the city and they sent me an itemized usage by day, the correlation between between the above events that transpired and usage is too much of a coincidence to dismiss.

That was part of the reason WF pulled the short sale, FNMA ordered and received the BPO and appraisal and WF didn't have it in their possession when the "Deadline Date" came.  

It'll be a rental, so my deadline is post-holiday season.

Also, I am just now reading an article that is saying that under Texas law the general deadline to file probate is 4 years.  

Find out the deadline for that stuff, because it is usually just 2 or 3 days.

Replacing the sewer line costs 10k and I am estimating 5K to put some piers under the flooring as the structural company can't come out for two weeks and the inspection deadline date is in three days.

Give them a deadline.

For the investor, this might be the only option, especially on rougher projects and those with short deadlines.

Call just after the deadline for payment (if it's not immediate) just to confirm that payment was made, if not get on the phone with the lender rep and see if they'll take your "backup bid" rather than going though the sale process again.