It depends on the number of Units, Residential or Commercial, Apartment Complex or mix of Single Family and Multifamily.Under 25 unit - Tenant Cloud, Rentech.Under 100 - Then Doorloop/Buildium.100+ - AppFolio, Yardi, Rent Manager.Apartment Management : Yardi seems to be wildly usedSingle Family ( Mixed ) - AppFolio seems to be popularRent manager has a good customer support team.

It’s a complex situation that requires careful consideration.  

I’m a huge fan of keeping things simple since it takes me longer to understand complex topics, especially taxes.

I'm very interested in apartment complexes and have been trying to learn as much as I can about investing in them.

They have ghetto Class Ds in Texas and Philly, a REIT, working farms, an operating golf club, apartment complexes, cryptocurrency... it's almost like whenever a very hot prospect gets through all their different asset classes, they simply invent another one.

Thus, I am interested in suburban space near major cities, not the downtown inventory that is trading for pennies on the dollar, but often involve massive office complexes that will have huge holding costs until they get leased up. 

Hey Ximei,I totally understand wanting to maximize the impact of your initial investment, and if you're open to taking on a bit more complexity, the BRRRR route can be a game changer.

When I got started I fell into this trap of trying to create all this complexity and then realized it was not worth it at all and all it did was create chaos and add more costs.

There's very little complexity to buying treasuries, you can buy them quickly and if you buy 4-week t-bills they'll mature quickly. 

In 2003, I bought a 52 unit complex in Fresno.