After Powell said he will pencil in 3 rate cuts, the housing market started the craze again (Bay Area heavily tied to stock market). 

Loans taken out before this date are generally grandfathered in and not subject to the limitation.Purpose of the Limitation: The $750,000 cap was implemented as part of the Tax Cuts and Jobs Act (TCJA) primarily to limit the deductibility of mortgage interest on newly originated loans and to simplify the tax code.

Here is my expected cost:Land: $475kAcquisition Costs (Environmental, Survey, Geotech, Traffic Study): $25kSoft Costs (Engineering, architect, impact fees, permit, legal, closing costs, taxes, interim interest): $300kSite Development Costs: (Earthwork, underground utilities, curb cuts, fencing, stormwater, paving, landscaping): $800k ($400k/acre)Subtotal before vertical costs: $1,600,000 ($80/SF). 

Tenant in CA is also always always more credible.To cut the story short, my buy box is buy in area where DOM < 10 days, avg price > 700k.

Analyzing a current property listed for 39,500.ARV x .7 - rehab cost= my max offerARV is looking at 60,000.Rehab is looking  around 10,000.70% of ARV is 42,000, minus 10,000 for rehab, equals max offer of 32,000.I do my best to underestimate ARV and under estimate refinance LTV, this could cut into number of deals acquired but reduces risk of over estimating and having money tied up in the property.

To give you a more cut and dry answer however ...

Will I get cut out of the deal if my buyer goes with the wholesalers property?

The systems they have can't be detected, cut or turned off, unless the perpetrators use bullets.  

Not worth trying to cut out the leasing commission to do it yourself.

While I told him already I will never cut him in on a deal out of "being my brother" I think it is right that I grant him some sort of value because he would be over paying on rent by $500 by living here and I have already told him I would give him an equity split, far more than what I will actually end up giving him in the end.