So I doubt whether I should sign, or it's a kind of rule that I have to sign if I work with agents to find the deals. 

As a PM I can justify the cost of this software, if I was self managing 1-2 units I likely would not. 

You can probably rent it out for between $1,200 and $1,400, so from a cash flow perspective, that’s just shy of the 1% rule that’s often talked about here."

Because you realistically won’t be covering the expenses of the property where it justifies the risk or investment.  

DC has its own set of rules—often requiring a Basic Business License with endorsements for specific trades. 

If it were me I would give them two or three months and respectfully answer their questions but also let them know what your ground rules are regarding taking calls and how you handle things - in other words be polite and also educative as to how you handle things.Good Luck!

I can definitely tell you there's still a lot of positive cash flowing and 1% rule deals and you get amazing appreciation.

You're barking up the wrong tree.Next, I suppose you'll tell me my slide rule is inaccurate, also.

The OTA initially ruled against paying.

Asking in the correct forum will get a better response.Read the RULES!