Most renters cannot (or will not) take proper care of a pool.So...if you decide to go for a pool property, make sure you have it maintained...and charge it to the tenant.

To thrive in real estate investing, you must maintain a firm grip on your finances.

She's not going to have any leg to stand on in court if you get that far unless there's some explicit language prohibiting the owner from assigning responsibilities to another legally authorized party, and I'm guessing there isn't if another PM company was maintaining the lease and provisions - and the fact that the tenant was voluntarily working with the other PM confirms the acceptance of an authorized agent even if it's not explicitly stated, the same way if you accept rent from a tenant after a lease expires you imply acceptance of the lease terms continuing (which is why you should always have a holdover provision). 

@Joseph BinkowskiDon’t forget that you can now be qualified as an accredited investor by passing the series 65 exam without any income or net worth requirements.It will cost you around $200 to $300 and will be valid for 2 years (unless you can park your license with a financial advisor firm, then it will last as long as you maintain it).It is not a difficult exam and you should be able to pass it with around 40 hours of self study with a good prep book or website.

It is important to find something that was properly maintained, with modern plumbing, electrical and roofing. 

Lots of people who have trailers don't own the property they are on and sell them.As for the owner of the land expecting tenants to do repairs-there shouldn't be many repairs required to the land, just the trailer that is on it (which your grandmother owns and should be responsible for maintaining). 

Investing in NNN lease (Walgreens, Dollar General, etc are your tenants) is also fairly passive, but you maintain a bit more control. 

But I usually heard this from people who had never owned a business before, didn’t have the cash to back up their plans, and often were planning to maintain full time jobs.My advice: Start with one business.

If your tenant has a credit score worth maintaining they will not want an uncollected judgment to be on it.  

Have you ever had to maintain a property?