Issues with surveying-setbacks, easements, water and sewer mains and alignment, elevation and drainage come into play and are usually not considerations in rehabs or additions.

If everything is still a go at that point, then it makes sense to perform the physical inspections, surveys, contractor bids, etc.

It has been posted here a few times but the NATP (National Association of tax preparers) releases an annual survey of pricing for various services. 

It's also the best kind of rental survey.

Just a suggestion - it would be great if BP could actually put out some sort of legit but simple online survey on this question.

We want to learn about the impact BiggerPockets has made in our member's lives so we have created a ~5-minute survey.

I have not paid for anything yet, but imagine the next step would be buying a land survey and engineering/architectural drawings. 

I'm a commercial real estate appraiser and we survey lenders frequently to keep tabs on the market.

The soft costs include all the design costs: architect, structural engineer, mechanical, electrical and plumbing for the building itself, but you will also need civil engineers who need surveys and geotechnical reports. 

I'm not 100% sure but assuming you're purchasing in this scenario.The next 60-90 days will include: Home inspection; contract negotiation; contract signing; mortgage application/approval process (if you're using financing); title search + survey (attorneys typically take the lead on this); securing homeowners insurance; commitment letter from the lender; final walkthrough; closing.The 2 parts of the process that will take the longest will be financing and title.