Even though it is not accurate in all markets, recognize there are markets worse and better than 50% rule and be able to justify any discrepancy.  

Go to Etsy and search for "rental property tracker," and you will find hundreds of nice spreadsheets to track 10-20 rentals, usually for under $10.Software has extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.

I've been seeing constant ads for Baselane, which I'm guessing is newer by the bonus incentives being offered and the amount of advertising.

Because I am baffled when “experienced” investors/syndicators make condescending remarks about new syndicators in one breath and advertise their 2-day bootcamps in the other.

When you are purchasing a multifamily property, the seller will be advertising the property performs at a certain cap rate.

The goal is to start getting your land-lording processes into place--how will you advertise, how will you screen, how will you collect rent, how will you deal with maintenance, who are you going to use as a lender, what is your process for bookkeeping and taxes.   

I see a fixed rate product advertised here on BP but not a HELOC type of product, where you can draw and repay on commercial property.With the DSCR loans, the lender requirements will change from lender to lender.  

And also where it would be tough to learn the industry over one or two deals because the deal time-frame is so long (I could make mistakes that I didn't recognize until 5 years into the deal).In this case, we're talking about notes.

If your fee is $150k I would expect a very healthy budget to be spent to marketing and advertising this property all over the place.  

You need to understand the market, advertise to buyers, show it in the best light, know what to say and what not to say, be skilled at negotiation, understand contracts, and much more.If you don't know how valuable a good agent can be, it's because you've never used one, or they made it look easy because they are skilled.