When you finance through national lenders, in your experience, is a balloon a common requirement for commercial loans of this nature or is it possible to get a fixed rate for 30 years?  

If you're doing a rate and term refinance, there's typically not a seasoning period but again it's common for lenders to require it be rented first.If you're doing a DSCR cash out refi, it may not need to be rented first but you're probably paying a higher rate.Your best option is to call a loan broker you trust and go through the options based on your current situation.

Some people get lots of phone calls day one, but not day 31 or day 131 or day 331. 

Taking phone calls or making cold calls?

You can have an email for each account and you should be able to set your phone up see multiple accounts at once should you get inquiries or messages.Just log into each account to make updates and price changes.

@Briar Blake @Sean GallagherAfter hurricane Ian we didn't have electricity or phone service.

The only monthly expense my business takes to run is my monthly cell phone bill for $27 per month. 

Has become super common with these wholesalers learning how to create terms on deals that have been sitting on market for a while. 

Common fees will include a set-up fee, a leasing fee for each turnover or a lease renewal fee, marking up maintenance, retaining late fees, and more.

This is a very common issue in parts of Milwaukee and I have done lots of basement reinforcing on our rentals.