Do you think acquiring multifamily properties 1-4 units and renting them out collecting rent payments from the excess rent minus mortgage payment , insurance , taxes , property management if you have it and any problems that may arise is a good idea and then doing a 1031 exchange to use the value of these properties when you sell to then put as a down payment on a apartment building .

So if an investor provides 250k for me to buy 1-4 family properties, or small mixed use properties - is taking a 15% stake reasonable or excess to perform the described functions (assuming investor agreement).  

I only bid on homes with excess funds usually at the last couple of sales I plan on attending.  

It seems excessive.

Your right it should have nothing to do with the 1031 but it it goes on the hud it is messy and easier for the service to claim you are receiving boot  A simple statement to that effect can go into the contract and the title company may even be willing to handle that part for you.Re: the excess funds- depending on valuations and any work needed on your replacement properties there may be a way to enfold that into improvements to tour replacements and still keep tax deferred status of that money

You would then need to take them to court to remove them which could take in excess of 2 months.  

What is mentioned in consumer law is "over pricing" "high mark up" "overvalued" "gouging" "excessive price" understand the concept of the "fair pricing" not a percentage as a trip wire that blows up your position. 

Narrow paths encumber carriages and wheelchairs, and properly cleared pathways ensure flow and safety of pedestrian traffic.Remove ice to bare pavement or make as level as possible and treat with sand, sawdust or similar material.Please clear any snow that may be blocking a handicapped ramp, fire hydrant or catch basin.DON'T: Shovel or plow snow into the street: Violators caught shoveling snow from private property into the street will be fined.Overexert while shoveling: Excessive strain from the cold and hard labor may cause heart attacks.

I think for the house hacking approach the first goal should be to have your tenants paying for your expenses so you're able to live there for "free" So if you'll be making enough money from rent to pay your regular bills like the mortgage, taxes, insurance, utilities, etc. and can put the excess money and your own monthly "rent" contribution aside for cap ex and other maintenance you'll be in good shape.

That may be how your lease is written but it sounds excessive, as most states that have weighed in by law on late fees cap it at 5%.