Knowing what a specific repair will cost is one thing but knowing how to catch those issues before they become an issue is vital. 

Here are the Fannie Mae guidelines for legally non-conforming properties:If the Property's characteristics are legally non-conforming, you must:ensure the Borrower executes the Modifications to Multifamily Loan and Security Agreement (Legal Non-Conforming Status) (Form 6275);confirm whether, if fully or partially destroyed, the Property's Improvements can be fully rebuilt to the pre-casualty condition per current laws, zoning requirements, and building codes; and if the Property’s Improvements cannot be fully rebuilt to the pre-casualty condition, evaluate if the as-rebuilt Property will support the Mortgage Loan at the current Tier, and document your analysis in the Transaction Approval Memo.To assess the Borrower's ability to rebuild Improvements on a non-conforming Property to a level that will support the Mortgage Loan at the current Tier, you should consider: conducting a threshold analysis to determine the resulting actual amortizing DSCR if the reconstructed Improvements cannot be rebuilt as-is per current law; the likelihood of a casualty event (e.g., wind, earthquake, fire, flood, mine subsidence, etc.); the percentage of damage to the Improvements at which the Property’s jurisdiction will require the Property be rebuilt to current zoning and land use requirements (i.e., the destruction threshold); which Property characteristics the destruction threshold percentage applies to, such as market value, assessed value, replacement cost, or unit count; for Properties with multiple buildings, if the destruction threshold percentage applies to each building, or all buildings as a whole; the replacement cost to rebuild per current requirements for zoning, and land use; the Property’s continued marketability, and economic viability; the amount and type of Borrower-maintained insurance coverage required per Part II, Chapter 5: Property and Liability Insurance, Section 501.02C: Ordinance or Law Insurance; insurance loss proceeds payout, compared to increased rebuilding costs, including from building code changes, Americans with Disabilities Act compliance, and the municipality's local zoning requirements (e.g., green compliance for new buildings, etc.); the sufficiency of estimated insurance proceeds from ordinance or law insurance and other coverages to repay the Mortgage Loan in the event of partial or full casualty, or condemnation; and for a Tier 3 or Tier 4 Mortgage Loan, if requiring execution of the Limited Payment Guaranty (Form 6020.LPG) would mitigate the risk of the as-rebuilt Property not supporting a Tier 2 Mortgage Loan.

LOL  If there's going to be problems down the road, their advice or forethought as to the planning/building of the structure, at least the flooring/layering on top of the existing structure, is going to be sooooo vital. 

From my understanding, the company renting/running it usually would act as a live-in property manager and would also handle the modifications.

Definitely, correct tax preparation is vital, and there could be a huge difference in your bottom line if your CPA is not a real estate expert and does not do it right.

They are not the posters who have a lot to say about subject to, wraps and other creative techniques but are clearly missing vital information. 

Section 61-2c-102 broadly defines "Business of residential mortgage loans" as follows:(g) (i) "Business of residential mortgage loans" means for compensation or in the expectation of compensation to: (A) engage in an act that makes an individual a mortgage loan originator; (B) make or originate a residential mortgage loan; (C) directly or indirectly solicit a residential mortgage loan for another; (D) unless excluded under Subsection (1)(g)(ii), render services related to the origination of a residential mortgage loan including: (I) preparing a loan package; (II) communicating with the borrower or lender; or (III) advising on a loan term; or (E) engage in loan modification assistance.

However, in this case it’s worth circling back in 3 months, 6 months, or a year because this seller wants to sell, he’s just not ready to give up his fantasy deal.If the seller’s response is acceptance of the outline of my offer but countering on price or terms, it may be worth negotiating because we MAY be able to get to YES.My biggest profits have occurred when I made offers that were nowhere near what the seller was asking and yet WERE ACCEPTED, or with small modifications. 

What that doesn't take into account are if the seller is in or has ever been in a loan modification, if they paid on time or if they are in a forebearance agreement. 

When doing BRRRRs OOS, having the right team in place is vital.