Self employed

Is there a way to trash the return I have started and just start over?  All this got stirred up because I had 2 separate tenants/leases pass away and their heirs decided to ignore the monthly billings for their parent's mobile home lot.  I know that I cannot write off those billings because they are not income received in my cash basis reporting.  But, because they never acknowledged anything, I have 2 lots tied up that I cannot rent due to 2 mobiles sitting there that I am not the owner of and can't touch.  I do have a legitimate loss of income, through no fault of mine.  After threatening with legal action and even filing some papers on one for abandoned property, they have both sent me the titles to the mobiles.  Unfortunately, they are not worth selling and I am paying to have them gutted, dismantled (they would fall apart if attempted to remove...one has been on same lot for over 35 years), and disposed of...more loss.  This Park has been in our family for almost 40 years and all my residents are seniors so rents are kept low...the business only generates $40-50k annually.  I am not trying to avoid taxes...just trying to do the right thing.  Some articles written by tax attorney's say that it is business income, not rental income...some say it is non-passive yet has to be passive to recoup some of what I have lost...was ready to confront the IRS but thought I would try the community.  Just wanted to put a little background in about all this.