In fact, his company hasn’t used a typical ‘list’ in nearly 30 years.He uses a software called Deal Machine.

Most of these companies provide software to manage your rental (marketing, application screening, maintenance tracking, financial reporting) and include online payments as an upgrade.If you're looking for just payments, you could have them set up direct deposit from their bank to yours without any software. 

It seems like there’s a bunch of separate apps or software.

It's probably worth searching for.Do a search for "free property management software" and you'll find TenantCloud, Innago, RentTec, and many other options.

Any recommendations on investor portal software?

I looking for opinions about software to manage my properties.

@Terry N.You likely won't find a free tax estimator online.Tax rates change ALL the time imagine a free software that would have to keep up-to date on all of this.Furthermore, each taxpayer live in different jurisdictions which result in different state tax rates.In general, long-term capital gains at the federal level is normally 0%, 15% or 20%.There is an additional 3.8% net investment income tax if your income is above a certain level.There is no preferential tax treatment for short-term capital gains.You may want to consider reaching out to your accountant discussing what property you plan to sell and he/she may be able to tell you the estimated taxes on the sale.

If you want to text to a list of 1000 buyers though, a software is preferred.

Recommend you don’t use this as your starting prices; go after a richer neighborhood and charge higher prices.23Auction rulesPost a “Topic” on this Forum and ask for some copies sent to you.24Security systemSituational, work with your local security firm.25Fencingsituational26Self Service or managersituational27Management softwareSince the world is internet based, see if you can use one of the Storage management softwares in Zagreb.

I obviously don't have REI experience but I'm a software developer by trade.