QuickBooks seems to be popular here, and I will echo the sentiment.

Thanks @David Thomas :) I appreciate the sentiments.

It could also be this in combination with in some of the houses the seller would like to sell to someone who will live in their house because of sentimental reasons. 

@Jazlynn GibbsMost of the recent market sentiment has been driven by constant anecdotal updates.

This sentiment is actually coming from an emerging group of community-based nonprofits, architects, city planners, and community developers, who see the value of using real estate to development to better their communities by literally shaping and rebuilding them.

Further realize there is a significant anti STR sentiment in San Diego county which means that STRs can be further regulated anywhere and therefore having a back up plan is prudent. 

This is my main road block now, as some people tell me I'd be crazy to sell the rental (after all expenses I still cash flow around $700/mo), and I understand the sentiment.

@Jason UnderdahlI have the same sentiments as you do right now.

Whichever county / city you choose, gauge rules,  regs and sentiment well as part of your DD. 

A sentiment ultimately shared by the Supreme Court.