It's 100% do-able to buy sight-unseen, despite what some folks might say (you'll have to put in more work to overcome the lack of personal market knowledge though).Why?

If you have any specific questions feel free to ask away otherwise it's best to just start reading the resources already available since they are put together but many of the experts on these forums. 

To my knowledge, she did not demand a test to be done, rather informed them that something looked like it was growing and that it could be mold.

I hate paying down principle rather than investing, but in this case it looks like it will return better savings than I could get in gain with the same cash.Really appreciate you all chiming in with your experience & knowledge, thank you so much!!

@Brian Garrett The knowledge just keeps coming from you, Thank you.

Arm yourself with as much knowledge as you can from your network, books, podcasts, ets, and you'll be ready to go. 

Investors build portfolios of investments so working is optional.Also, whenever I see someone looking for free knowledge/training, I try to remind them that there needs to be an equal exchange of value/time on both sides. 

Since you have a business account all expenses and income will flow through that so if shouldn't be that hard to keep track ofBased on the tone of your post maybe more important than the software, is the knowledge of what can be deducted and how to track expenses,  IRS puts out some free publicationshttps://www.irs.gov/publicationsPub 17 and Pub 334 would probably be the most useful.

I am not an expert on lagoon systems, but i would not consider anything else till i am sure that this lagoon will not kill my park and me financially. 

In addition to being responsive and knowledgeable, she is also an experienced landlord and property manager.