At the moment what I need is a website where I can list all my vacant properties, create workflows for rental applications, automated payments and ideally a website that can be an API for my Rent Manager database.

Our web address is www.OCREIA.com.

It has a client facing web portal that collects our rent and deposits next day (even though the ACH payments don’t technically settle for about 4 days.)  

I only see APIs on Twilio's website, so you just threw something together on your own website to use those features?

@Carlos Batista, lots of good primers on different intermediaries web sites.  

I especially like to use the widget  for chrome: Evernote Clipper which easily lets me clip things I find across the web about it.

@Shanel WigginsHello and Welcome to BiggerPockets, the Best Real Estate on the web.

The second takes lots of experience.There are lots of title companys that search Orange County and depending on what you're looking for you may or may not need a title company and the costs will vary.Here's a link to the Orange County Comptrollers web site.

Page Authority is based on data from our web index and takes into account dozens of factors.Now that we are experts on DA and PA:Obviously he is ranking #1 for pretty much all his cities he invests in.Now look at something very interesting here.

Also, web sites don't typically convert.