Everything you describe though is just the normal process of how taxes are reassessed when a property is sold.  

This process is either done prior to listing or during escrow.

Renovating a 3-unit townhouse sounds like a great project.How’s the process going so far? 

Ask them why they decided to buy what they bought - it will give you all you need to know about their thought process and if they can procure a good deal for you. 

Getting an LLC in place from the start can provide peace of mind and give you a chance to familiarize yourself with the process before expanding your portfolio.

I experience the poor processing and unprofessional work they do.

Small-Scale Testing:If you're uncertain about diving into a larger project, you might want to test them with a smaller loan to see how they handle the process.

The differences between most software is subtle and may be how they bill for their service, support their product, or the process to use those features.

They listen to what you suggest and continually improving their software and processes.

But what is really important is that you understand the terms of the loan, including the length of time and when you can expect to get the money back, how it is secured, and the process of getting it back if things don't go as planned with the investment.