Make sure you have adequate reserves to cover unexpected emergencies.3) Time-intensive - If you live on-site you're a live in property manager on call 24/74) Legal issues - know the max occupancy laws for your area.

Always trade offs, especially depending on how long that buyer is looking to keep the property, or refinance.

Keep all the money you collected from the previous year for emergency only and repeat the process. 

Also, I strongly urge you not to make a habit of going into transaction planning to trade terms based on inspection report findings.

The HML/PMLs generally have more "flexible" or "creative" lending terms (higher LTARVs and longer amort), but the trade off is higher interest rates.

I don't require my agents to join NAR and in fact dropped my membership when I opened my own brokerage.If the situation made sense, I wouldn't necessarily require an agent to join MLS, but it's such a basic tool of the trade, I can't imagine someone who is active in the business going without it.

To me this means a 2-3 bd single family home in a high B / A area and saving a big emergency fund.

Mostly on trade accounts with local businesses for the materials, some business credit cards, some of the contractors were OK with waiting 30 days for payment. 

They started trading hand written IOUs for food.

Also, more people seem to be choosing trade schools over traditional colleges.