If your home is paid off - and it's worth $400k Then you have it on easy street -- I dont know who you bank with but they may be a good place to start -- find a place that will approve you for a HELOC (Home Equity Line of Credit) and your house is used as collateral -- The interest rate they quote you will be based on credit and then how much of a LOC (line of credit) you request and are approved --- then what drives the rate as well is how much that line is as a percentage of your primary residence Value -- IE you take a 60% LTV so $400k * 60% = $240k HELOC -- the HELOC can then literally be used as  a check book - normally fees are very minimal to set these up -- app fee is normally just to cover the cost of the appraisal on your house. 

I'd like to provide potential tenants with some sort of automated system where they can sign up for an available time slot online or in an app. 

Hello Fellow DMV investors,Here are some interesting recent stories from the D.C. real estate world and beyond.Final Map of New Ward Boundaries ReleasedThe Final Plan to Redevelop Greenleaf in Southwest DCThe DropOffer app makes it easier to buy unlisted homes$19.3 billion in infrastructure-bill money to flow D.C., Virginia, andMaryland combinedKeep up with issues specific to the region with @Russell Brazil and Jack Seidens' DC Real Estate Podcast and the latest sales trends with @Cassidy Burns ' DMV Weekly Market Update.

. - we've recently installed an app controlled buzzer system for secure entry of guests and deliveries.

The reason the check is for $1,000 is because that’s the smallest amount the bank could write a certified check for, so if he can just cash app you $450 for the difference in the showing cost and the check amount, minus the $50 for the gas to get there, you will be square.

Use apps like Trello, Monday.com, Asana, Google Tasks, Outlook Planner for this.Use automation whenever possible: There are so many ways to use automation these days.

A while ago I think I read about a very low or no cost tenant background app being offered on BP?  

join with 100 separate investors or more on a Reg CF corporation and become a REIT or invest directly on Robinhood or SOFI apps into a REIT's Stock.

and access to tons of information, classes and education.There are also several local on Clubhouse app and a few that do podcasts..so lots to check out here.

They have an app as well.