They have accused me of endangering their child because of a poorly functioning AC unit, the cause of which was from them failing to change the filters for 45 days. 

Replacing a roof or extra heavy snowfall could easily eat up any potential profits.

Never attempt to time the market as it changes too easily. 

Crowdfunding makes real estate easily accessible, however, in regard to institutional/syndicated real estate investments, the advice of an expert who works in the industry every day, knows all the players and their track records, and performs due diligence on each offering is a great benefit to the client and comes at no extra cost. 

If your going to do assignments or sandwiches on someone else property you need to really ensure you're doing things right, otherwise you could easily have 2 parties (seller & buyer) suing you. 

Depending on the ARV realtor fees, title transfer, etc could EASILY wipe out your 15k profit you're hoping to make.

NO, but be advised these are easily HACKED so unless you're skilled and configuring WiFi,  caveat emptor.

(You should see some of the crap I get in the mail) MF investors typically aren't as easily found with their back against a wall.

The best part was that it sat on .48 acre and we cleared the empty lot next to it and it was up to the new homeowner what they wanted to do to it.It had some foundation issues that we easily fixed.

You can get a realtor to send you MLS listings using filter criteria.However, I would apply the full millage against the price you plan to offer (to get an estimate of your future tax bills) so you don't get surprised with a new increased tax bill the following year.