I'm a real estate broker in Niceville, here to post a new listing that would may appeal to an investor.

I may later this month with a rehab, but I have no experience yet.However, I agree that having an exposed tank in a living area is not aesthetically pleasing. 

As long as the appraisal contingency is in place and extended during the time the seller is appealing it then I would wait. 

If so, then the title is clear, absent any local government liens.If you mean you've obtained a Quiet Title order and it is final and non-appealable (42 days after the order is entered) then the title is clear.If you mean you can't find anybody who is still alive, the title is not clear. 

The second question is can I charge it to them and at least take it out of the deposit, which was only $600, but at least I only eat $150 at that point.The last question is, the citation said I could appeal.

If you are able to take a default judgment, it will cost around $800 total, and be final and non-appealable in about 2.5 months. 

Visuals go a long way to help the aesthetics of a property. 

Also, I'm willing to pay a slightly higher sales price or interest rate if the numbers still work in order to make the note marketable/appealing.

The appeal to me is that they seem to require less management than multifamily and have longer-term leases.

If marketing doesn't appeal to you then getting on a wholesaler's mailing list is free.