Any recommendations or experience on good online banks with high APY for this purpose? 

In terms of taxes, this is what I got from my CPA< but i dont think its still right, seems VERY high.

-How to analyze a market for high cash transaction areas.

And the quality of living is very high. 

Hopefully the high season does well.  

Until about 2 years ago I owned a custom wheel company that built one off wheels for high end/race cars.I currently daily drive a 2005 BMW 745i, trying to decide what to replace it with.

At $200, unless its almost new or a high end stove, you may want to consider a new one instead.

We have a lake house that rents for the same rate as a hotel in the area, therefore our occupancy is super high. 

@Brett SynickyI would probably say that the fees are high, but that’s not telling the whole story.

Taxes wise I have opened up a high yield savings account and putting money into it in case I do end up owing taxes next year, but what do I need to be saving as far as forms, I don't have the tenants on a lease yet since this is my primary on the mortgage, but I am giving them receipts when they pay rent every month and keeping those saved.