I am a first time real estate investor looking the following property : https://www.redfin.com/OR/Forest-Grove/2418-Cedar-Cir-97116/...its a pretty large duplex in Forest Grove OR,  the trick is though, its on a lot zoned for a 4 plex so I am lookinginto house hacking, converting into a triplex, then living in one unit while renting out the remaining two unitsThe left garage has been converted to living space, with a living room, half bath, a laundry room with a sink and some counters/cupboards and a bedroom, it is a part of what was an existing 3bd unitIf I were to acquire the asset, I would first attempt to convert that space into its own unit The line items as I see (be in mind, I am totally new to this) would be to >put up dry wall where the door to the rest of the house is,>add a shower to the half bathroom >install a water heater in the adjacent 3bd unit> install a kitchen in the laundry room, (stove , oven , sink, counter space)>add a shower to the half bath Assuming I can convert it to a 3plex, I could at-least cash flow on my investment after I leave My plan would be to put minimum down payment of 3.5% (FHA loan) that way I can have a decent amount of capital free to do the renovationsThe only concern is when I crunch the numbers to get my ROI, I have no idea how much its going to cost to convert the additional living space to a third unitAny experienced investors here know how I can estimate this before I try to make an offer?

I am in CLT but work in the TN market frequently. 

My LCOL city is one frequently targeted by out of state investors and the good finds are snatched up within 24 hours of listing.My cousin is a part time real estate agent.

Is driving by frequently an intrusion in some form? 

A mentor can help you avoid typical problems and offer advice, support, and insights as you negotiate your initial transactions.Assemble a trustworthy group of experts to support you during the wholesaling and subject-to transactions process, such as real estate brokers, lawyers, contractors, and bankers.Real estate investment may be difficult, and tenacity and determination are frequently necessary for success.

Its how the plaintiff gets certainty of recovery and most importantly how the plaintiffs attorney gets certainty of compensation for their services.No land trusts, no wyoming LLC's, no separate management LLC's as are frequently contemplated on these forums.

If possible, I would recommend finding a position at one of the major commercial brokerages nearby you, or at a boutique if necessary, that does high volume and guys are frequently doing deals.

So they say “call this 1-800 number to get a refund,” which also doesn’t work….F%#* I finally bit the bullet and got a $30 portable air compressor, great for my frequent long road-trips.

You are tricking people to open it.

I am mostly just trying to discover any tips or tricks or identify any strategies that I could potentially be missing out on.