Doubt things stay linear, but we need market suppression for at least 2 quarters and/or into non-peak times during RE--at minimum 2 quarters.

I continue to update quarterly in (Part 4).

@Jean Francillon many dividend stocks pay quarterly instead of monthly. 

The license to park is paid for quarterly. 

Such additional duties may include, but shall not be limited to, the following;Returning trash receptacles to their proper place  after 12 hours of collection.Responding to police calls due to tenant activities.Responding to excessive complaints by neighbors or public officials.Responding to excessive communications without good cause, emergency situations excluded.Removal of inoperable machinery, vehicles, trash or personal property outside living quarters. 

With family in Texas, you can drive a short distance to see the properties on your vacations if you like, but don't need to work there on your vacation, just cash in your quarterly payouts and have some fun.

My goal was to buy one rental in the first quarter of this year, with four total in the year.  

This plan includes conducting quarterly seminars, building relationships with local care facilities and finding opportunities to host events for seniors in my community (i.e.

A set amount each month or quarter?

Hitting each door once a quarter usually suffices.