I wouldn't count that as an operating expense since its not a regular repeating expense. 

Again, the BiggerPockets store has some books for this or you can learn by watching podcasts, reading blogs, and interacting on the forum.

Examples-- Max out Roth IRA (currently $6k max) - Max out company 401k matching (or the equivalent of 401k) - Contribute to regular IRA (up to $13.5k)- Pay off all debts (except mortgage) What are some personal finance tips you always give to others and why?

If you're looking at something other than a college town or tourist areas (which are unlikely to have properties that inexpensive), I'll bet that you'll have a harder time than you think selling off those new lots.In general, unimproved land moves more slowly than regular homes. 

Let's suppose we had a platform for sending automatic SMS, scheduled calls, voicemails, or regular emails, so i wanted to ask you how you will be use this kind of platform.

We've blocked our calendar and haven't been taking any bookings but we were accepting bookings at our regular rate for 1 guest (my houses accomodate 8 guests) and I asked the guests to confirm that they were essential workers.As it always happens, some guests lied and also lied about how many people they were bringing.

I was reading and on youtube, you can pay the mortgage by depositing all the retirement money and then take out as needed for regular expenses.

Look into options to rollover into amortized payback or growth.Offer long term retirement funds that look similar to mortgage amortization schedules.Explore options to donate portions of the interest gained to provide community support to help rehab homes with people who need help, but can’t afford it.Create regularly updated, highly visual progress reports for the various remodel/ renovation projects.

We recently purchased a 32-unit in Columbia, SC, on a regular old bank loan - no requirements for experience or net worth like an agency loan (Fannie or Freddie) would have.

When you juggle multiple leases under a shared dwelling the interaction of those personalities and lifestyles can create a headache.