I invest for my own account, and do deal analysis for my syndication business while my partner runs all other (administrative) functions.  

Neither will write on the property now due to fire hazard 

I write an article each year on tax returns and what you should be claiming and what lenders will ADD BACK to help you qualify.  

Some say "in writing" while others may specify the method of writing (e.g. certified letter).

Take a minute and think about what your overall goal is and write it out like a vision board and find out what it will take to get there.

You should talk to your tax professional about writing off a percentage of the home used as an offie.

In my opinion, your best bet at this point is to remove the listing for a few weeks and re-list it as a new listing with updated photos, new write-up, upstairs staging and minor repairs as others suggested.

Thank you for taking the time to write this Kenny.

I researched this heavily when writing a whole subchapter on this issue in The Hands-Off Investor because I didn't want to fill that book with just my own opinions.  

You can absolutely write a sewer scope into the offer.