I am opening a business in Mexico city (Hair salon) for my wife so get some short term income, Also I am heavily invested in the US stock market but at this time it is not going no where until we have some rate cuts. 

I really like the  appreciation vs. cash flow article here, but also not sure where to look for things like where businesses are moving to and types of jobs in the area written in the same way as that article.

Busy, busy busy...

At this point everything is on auto pilot and someone could buy the property from me and just collect the rents.So, as an example that I'm making up for simple math: If the property is worth $700,000 and it's been consistently bringing in $50,000/yr in net revenue, could I sell the property as a business for more than the property is worth (eg $850,000)?

So, in this way I manage the portfolio has a business instead of managing each property as its own separate business.

I use this system and even my bookkeeper uses it for her business. https://a.co/d/1tnzkhy

Is it a vacation home that you also rent out, or is it a business that you stayed in for 14nights or fewer last year?

However on a Title SearchI did in 2020 it shows the lien in 2nd position to CIT Small Business Lending. 

To address this, we agreed that I would work in the business for six months to verify the financials, which so far align with his POS system.My main issue is that at 23, I don't have strong financials to get a conventional loan at 75% LTV with a ~7% rate, and the seller's lack of financials complicates bank approval.

Ernest,Besides all the real estate/property/transactional tips above; you need to understand that running a short term rental is running a business.