Use softwares like AirDNA and Pricelabs to get an estimate of what you could be making and see if it's worth it.

Quote from @Tod DuBois: Looks like everyone is using some software tools for various tasks, I'd not heard of most of them.

Can anyone recommend software which would accept monthly payments (from me to seller) and create proper 1099 forms for tax purposes at year end? 

Mozeo is a fairly user-friendly software, and very affordable.

If you’re not already using similar software, I’d highly recommend exploring these options—they can save you a lot of headaches down the road.

Any advice on the best virtual staging software/websites?

According to your profile, you'd be a representative of a Mexican real estate agency I'd never heard of, even though I've been investing in Mexico since 2017 so I googled the name you give and, surprisingly, I didn't find a proper website, just an influencer-like Instagram account.

Our hands are tied accordingly however as we cannot influence the appraiser and need to keep them truly independent (as every legitimate lender in the space knows as well if they want to continue as such)

Pricing - If you cannot check your competitions price and adjust yours daily you may want pricing software (PriceLabs probably best for single listing owners/operators). 

I've seen this in the news.This doesn't affect me because I'm small time compared to these big companies.I also don't purchase any pricing software.