Writing technical documents with gender neutral language

1)
The form no one enjoys reading:
The project manager approved the estimates and added it to her or his project plan.

The more appropriate form:
The project manager approved the estimates and added it to the project plan.


2)
The form no one enjoys reading:
The professional project manager considers all the risks. S\he also categorizes them.

The more appropriate form:
The professional project managers consider all the risks. They also categorize them.


3)
On the level of words comes some examples:

Chairman --> Chair
Policeman --> Police officer


4)
For titles, unless you are sure about the specific person's preference; 

Miss --> Ms
Mrs  --> Ms

Tip: DOE on job postings

DOE: Dependent on Experience

This is usually associated with the expected salary figure

Tip: To mind your Ps and Qs

That is to be polite; hence, to consider saying the words: Please  and Thank you.


That's actually both an English and a Business communication tip, beside being an English idiom.

English Language Tip: Fortnight

It is an old English term used as a unit of time equals 14 days or 2 weeks.


Just a note to be careful because it is sometimes used in business referring to salaries, pay periods, social security benefits, or during task scheduling activities. 

Please advise or Please advice

I am pretty sure that this is already clear for native English speakers, and any English beginner learner that:
Advice (Noun) - Advise (Verb)

So the correct form should be: Please advise.

However, this time what is confusing me is MS Outlook! It do not like both!!!

Microsoft Outlook 2013 (15.0.4615.1000) 32-bit

Common English mistake using: Alumni

Singular male:     Alumnus
Plural male:        Alumni

Singular female:  Alumna
Plural female:     Alumnae


What about using the informal abbreviation for all?! ;)  Alum