when I used a capital gains calculator online, if I put zero money down and put the 2 loans, the cap gains is a lot lower than if I just recorded 1 loan and entered the money from the downpayment loan under cash.

What would be the best course of action to sue them for non-payment? 

One tip is too is reaching out to some people in your market place that are doing flips and see if they can send you their spreadsheet they are using.

If the unit is empty and the potential tenant seems great, I would let them move in on the 29th or 30th of the previous month since most tenants will prefer to move on the weekend and I won't ask rent for those 1-2 days (of course utilities have to be in their name, etc).

They all had their own lawyers of course and it was a mess that took 3 years but eventually the buyer (the developer) did prevail.

And of course, will gladly drive somewhere for a couple days, park myself somewhere and work-remotely as needed. 

I did hundreds of them .. then the crash happened and well things in the BRRR world stalled and then of course the new buy and BP coined the term like it was something new.. but its old old school for sure. 

We lease a platform for online access and efficiency with both a lender and investor portal.

I just got off a call with Lendbase and it sounded very good of course but now I am having second thoughts.

You can also check their reviews online at Google, Facebook, or Yelp.