Just stating that waiting will also likely make the cost of what you want to buy go up if the last 98 years of real estate data provides the future direction.

Property taxes and insurance costs are best obtained through local county websites or reaching out to insurers directly for quotes specific to the area.Tools like BP Pro and Reventure can be helpful for an overview, but it’s a good idea to validate their data against primary sources to ensure accuracy.

While technically business purpose loans, these will still basically be 30yr (or whatever tenor) fixed rate mortgages.

I wish you the best of luck building your business on another platform.  

If the tenant is claiming to be living in a hotel, she may try to get you to reimburse for that cost unless section 8 has a new process to reimburse them for this... which sounds absurd but I'll let you deduce whether or not you're dealing with someone who is used to paying for things out of their own pocket. 

Having used both, I would go with propstream if you're looking for a solid data platform, and are investing significant money into other systems as part of your business and its growth model.

How much do you net (including financing costs)?

If you drop business and work you can bounce back.  

If they are too busy or too lazy to answer a call or send a short email, what else are they too busy for?

I personally do not prefer to hold high cost SFRs as LTR investments.