Other than changing filters, what other regular maintenance should be done with ac unit and at what frequency? 

You can keep sinking time and money into a dinosaur that will continue to crap out with increasing frequency, or bite the bullet and replace it.

- blog content frequency suggested 🗓- would you suggest implementing video as well?

It would be good to know the frequency of experiences like this with MI as well as other turnkeys.

Included in those considerations is frequency of transactions and intent. 1 is arguably few enough to not consider it ordinary but if it's 1 per year and the IRS sees you're doing it mainly to avoid taxes it could cause problems.

But you can adjust the stay-alive check frequency to minimize that. 

Blogging is a commitment and a real skill to find the right blend of material and the right frequency for your audience.While I'm now highly skilled at blogging, I'm not sure that I could maintain a successful RE Blog that people would want to read or follow as there is so much excellent subject matter content out there (and here) already and I'd have little value to add.It pretty much comes down to the goal of what you're trying to accomplish.

You want to spell out the amount, the interest rate, when it's computed, the payment frequency, any minimum or maximum payment amount, late fees, etc.The difference between 8 and 9% is 12.5% of the return your lender is getting.

Flipping houses, if conducted with any regularity or frequency (more than a few a year) will subject the IRA to Unrelated Business Income Tax (UBIT), which can be as high as 39.6%.  

Marijuana does not do damage like nicotine from cigarettesIt's all about frequency of use.