Here are some common hurdles that many investors face:Market Conditions:Project Management Risks:High Upfront Costs:Finding a Reliable Lender:Regulatory and Inspection Hurdles:Cash Flow Management:If you're in fix and flip game and need to secure funding.

Window units are very common in Columbus.

I am located in FL and am not sure of the requirements necessary if we keep it as a single lot regarding forming an HOA, maintenance of the common grounds etc. 

Noise and smells, hours of operation, and access issues are very common, and many commercial tenants have conflicting needs with residential.

@Garrett Brown Can you tell me what's a home run, and is it common for the lender to change prices like you've stated in this post?

. --- So, if you're renting out rooms and everyone shares common spaces like the kitchen and living room, you're in the clear of those ADU rules.

And, as a Condo project everyone is sharing in the water bill by allocation of the HOA fee which should be increased if common area expenses have risen.

Even small, common mistakes like renting below market, picking the wrong tenants, unwilling/unable to enforce lease terms, slow turnovers, or unscrupulous contractors can cost more than a good PM will charge, and that's before you account for your time and the stress.If you have the personality, I recommend self-management for anyone who lives within 1-2 hours of their investments.

.), would a 50/50 profit sharing scenario be common/acceptable?

Buying a property for rental use with minimal down payment and manageable monthly payments is a common goal.