No one can answer questions like this because the strategy depends on the investor's level of interest, financial framework, location, and many other factors.

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 depends on your market.

We recommend multiple tools to our clients depending upon what they needCRM > Followup Boss Data Tool > Batchleads | 8020REI | DataFlikData Management > REISift | BatchleadsSkiptracing > DirectskipSMS Marketing > Smarter ContactRVM > Smarter ContactCold Calling > ReadymodeDirect Mail > YellowletterhqIn my 5 years of experience in lead gen.. i have seen people getting success only by staying consistent on marketing. 

I work with several custodian companies and depending on your account needs, can do a warm introduction to my contact. 

Also, depending on your long term goals, transitioning part of your portfolio into more passive investments might help reduce operational stress while keeping your equity working for you.

Depending on the market a more expensive rental could take a little longer to fill on average. 

For instance, a worksheet calculator that you can depend on for accurate rehab numbers, a coach or mentor that has experience wholesaling whose brain you can pick, a curious, principled solution-based mindset, willingness to find sellers that are NOT on the market, and for good measure -- steal underpants!

Secondly a 7% rate with 1-2 points depending on LTV, FICO, DSCR, and prepayment penalty does sound fair/market standard.

Not fun or enjoyable in any form or fashion.