Because I have been doing the analysis reporting for Eggleston Realty, I always check comps.

In Texas lanldords must allow early termination of a lease in the case of domestic violence.The requirements are pretty straight forward, in that any tenant with a court-ordered restraint and police report for a domestic abuse/violence issue can leave without penalty.Usually, but not always, the court order will mandate who stays, who goes, and who's responsible for the lease. 

@Austin SnowOh the joys of Denver zoning....if you go the route of asking for a variance please report back on your experience....I always just assumed I was locked into whatever the 2010 rezoning allowed for.

Are there tools, reports, or other resources for investors?

I'd suggest talking with our friend Mette and taking a look at there modern home cost guide http://aamodtplumb.com/Modern-House-Cost-Report

Do anyone know how I can get an accurate preliminary title report like fast? 

Rent roll, last few years of tax returns/ expense reports.

FYI, http://www.realtor.com/news/real-estate-news/your-hoa-payments-may-now-affect-your-credit-score/

The one consolation I can say that I have found is this: if you're willing to execute one cash out refi per property in your own name and hold them on your credit report, and you have good credit with sound income, many generic lenders (Citi, BofA, local credit unions, etc) will execute cash out refis in the mid 4%s.

In most states, you do not have to report when a beneficiary changes to anyone.