Out here on the West coast the buyers brokers agreements were not nearly as common as back east and buyers out here are not familiar with them and are balking.. then sellers are balking at paying outside agent because of the laws Etc etc.. 

Are these common now?

2-4 units are not that common, but builders are building them more now.

The market has definitely gotten more competitive, and it’s common to see BRRRR deals over $250K, especially given the high demand/appreciation in the area.

Commonly known as xxxx.

Typically it is asking too much for rent, but it could be your advertising is poor or your property is not in good condition for that area."

Time the Sale Strategically: Selling the property in a year when your income is lower can place you in a lower capital gains tax bracket, reducing the tax rate on your gains.8.Deduct Selling Expenses: Costs associated with selling the property, such as real estate commissions, legal fees, and advertising expenses, can be deducted from your sales price, thereby reducing your taxable gain.9. 

You need to get referrals from friends/family/locals...most GCs will not advertise in the normal places.

Both common area TI and unit specific TI.  

These are all common pitfalls I see people when doing flips, BRRRRS or even multifamily.