I was wondering what would be my better option to get a down payment for my next property.

You can find videos/articles online on how to get the basement dry, but the basic process is: 1) turn off all electric to the basement (to avoid electrocution from the water), 2) run pumps to get the standing water out of the basement (sounds like you're already doing this)3) remove all furniture and items from the basement,4) once you've pumped out the standing water from the basement, rent a wet/dry carpet cleaner/extractor from home depot, and use it to extract as much water as possible from the carpets (they'll be much lighter and easier to move once you get the water out). 5) After you've used the carpet extractor to get most of the water out of the carpet, remove all carpet and get it out of the house for drying (if you're trying to salvage the carpets), or throw the carpet out.

I know it is too late at this point but should you find yourself in this position in the future I would utilize the 1031 exchange option.

Dividing it up into 17 acre lots would be an option as well.

If you plan to use a third option, look there as well. 

Mom and pop NY brokerages would be a better option, but they will have no training or systems, but will hold your license while you look.

I just don't see a big enough difference between the RentRedi and all of the other free softwares to justify spending $9/month.Long story short: Why should I use RentRedi compared to the free options out there?

Since you're selling 8 SFRs, this could break up into multiple distinct exchanges (most likely), but you have the option of combining multiple sales into single exchange purchases. 

The self serve option is hit or miss, I wouldn't use it in a city with strong squatters rights.

Do I have any other options?