The thing is prices have increased and I don't know how much is left in the tank short term, besides the fact that capital gains are speculative in nature, like everywhere else.

PS when you go into the health department ( or whoever controls on site sewage) you may find out also that your individual systems and tanks are fine.. but you want to know for sure before you spend any money.

I'm a little confused when you said your credit Tanked.

I see red flags and my gut says the market will start tanking by this time next year.

Frank the TANK!!!

Things such as hot water tanks, carpets had to be replaced in a few years, so I wound up depreciation some items more than once.I sold a rental last year for $430K that originally cost me $70K as an investment property.

Well it sounds you will be on the hook for a septic upgrade.Has the township told you, you need to upgrade the tank or do they only want the drainfield inspection?

Buyers will have a LOT less advocacy, less representation, and I will have some more paperwork saying a person knowingly tried to negotiate with a professional R.E. shark and that they own the results free of any liability on the sharks. 

If you are in a market where you don't have a lot of sold data, a couple distress homes could tank the valuation. 

Ask the wholesaler how old the roof, water tank, ac unit and furnace are.