It's likely a scam anytime they sound like AI or the grammar is weird or they use the word "kindly", if they ask for you to respond to them off-platform, if they say their employer will pay for it, if they ask if the dates they've specified are still open (when they can clearly see they are open on your calendar), if they ask for a video of your property (they probably want to set up a duplicate listing with your photos and video and scam others out of money), or if they want a long term booking and they have just joined the platform and have no reviews (could have been evicted from somewhere else, and hope a newbie will let them in with no background check, they'll end up not paying or credit card is bad).  

A good manager can improve performance for a mediocre investment; a bad manager will kill a good investment.

You will also discover the warranties don't cover as much as you think, and claims are often denied.Home warranties are so bad that most professional property managers will not manage a property with one in place.

Nights, weekends, holidays, etc.To keep this on-topic, though...DO figure out what's healthy for you to manage but remember it's a process where every experience teaches you good and bad (and be patient with that process).DON'T sweat the small stuff (damage/costs under $50, undisclosed dogs, etc.) but DO find a way to learn, prevent, put in better practices to maintain your sanity. 

If you think you can manage a mortgage, taxes, insurance and the upkeep of a home while paying your student loans then buying is not  bad idea but if you think you will overstretch yourself renting is nto bad either.

Not too bad when the inventory is low, the number of sales is low (like a 30 year low), interest rates are high and prices are high. 

Hope is a bad strategy.The only on market strategy that I think can work is paying cash/line of credit/hard money for a property that does not qualify for conventional financing.

If you just hire the cheapest or first PMC you speak with and it turns into a bad experience, please don’t assume ALL PMC’s are bad and start trashing PMC’s in general.

Quote from @Martin Jones: YouTube gurus will tell you to borrow money from someone else, but that's bad advice for a beginner.

Any house here that's sub $100k, on or off market, is going to be so bad it will need $30-75k in rehab.