With technology nowadays, I don't find it necessary to have an in town tax accountant.

You are not going to go to any real lengths to secure business without compensation, and nowadays or when this gets enacted, likely upfront. 

There is always a deal to be had.Be quick, buy with cash and close quick.Need to up the game with direct mailers again, haven't sent them in a while and with the market shifting it's tougher nowadays. 

Advertise as much as possible to get people there, create a buzz.

Nowadays I invest small amounts every month in passive real estate syndications, by going in with other investors through an investment club. 

In my experience working with clients that have come to me *after* trying the online services, they're usually left wanting more, such as: - market knowledge on what to negotiate (not just pricing)- how to leverage online marketing to generate buzz in order to have a line at the open house- creating a bidding war between interested buyers Again, it boils down to your personal preference but it's worth a try as you say - since you're already an attorney, that's one less thing you have to pay for. 

What’s a fair $/sqm nowadays for pre-construction sales in Tulum?

Almost every industry in the world nowadays has experienced massive earthquake of radical changes. 

Nowadays, there are a bunch of lenders that claim to be NonQM lenders but so many restrictions.

It is worth R$480k nowadays and the rent is R$2,400 /mo.